Thats irrelevant to your own post. Your posts questions are answerable only by guessing.
Unless of course you can specifically cite the Quranic verse you are referring to.
I will remind you of your own OP.
A. The reason that God kept sending down Scriptures so many times, is because, everytime People eventually, divided into sects, and misinterpreted the Message of their messenger, so, Allah had to send another messenger to give the original message to correct misinterpretations and to unite them. This process continued from Adam, the first messenger, and continued to Noah, Abraham, Moses Jesus, and Muhammad, the seal of Prophets.
B. The reason that Allah kept sending down Scriptures, is because the Laws and teachings of God are suitable only for a certain period. Once the period was passed, people needed a different set of Laws and teachings in accordance with exigencies of the Age they lived in. Thus, God sent a Messenger to them with a New Law.
For B, I had already answered from Quran in another post, and I repeat for you :
"We have formerly sent apostles before thee, and bestowed on them wives and children; and no apostle had the power to come with a sign, unless by the permission of God.
Every age hath its book of revelation: What He pleaseth will God abrogate or confirm: for with Him is the source of revelation." 13:38-39
This verse tells us, each Book is for a Period of time or Age. Meaning when the period is passed it is time for another Book to be revealed, in which God can change or keep what He said before. An example of this is explained in another verse that Jesus came and allowed some of the things that was not allowed before. I have posted this verse, in this thread, please refer to it.
And specifically for the period for which the Quran came was 1000 years:
“Indeed, those who reverence the Rites decreed by GOD demonstrate the righteousness of their hearts.
In them are benefits to an Appointed Time, then their place is to the ancient House” 22:33
Therefore the Quranic Rites are benefitial until their appointed time, then after that, Religious Laws are Referred to the Ancient House, which
according to Recorded Traditions, is in Heaven, and the time of ascension of the Quranic ordinances is in the 32nd Surrah:
“He directeth the ordinance from the heaven unto the earth; then it
ascendeth unto Him in a Day, whereof the measure is a thousand years of that ye reckon.” 32:5
This verse tells us, the ordinances or the Laws of Quran, that had come down from heaven will go up again, meaning God will take them Back, after 1000 years, because its period is over.
Now, as regards to point A, that means when people misinterpret Book of God, and invent their own ways, and become misguided, it's time for a new messenger to come and reveal the truth for them. Its evidence is in 7:34-35:
"Every nation (Ummah) has its appointed time, and when their appointed time comes they cannot keep it back an hour, nor can they bring it on. O children of Adam! there shall come to you Apostles from among yourselves, rehearsing my signs to you; and whoso shall fear God and do good works, no fear shall be upon them, neither shall they be put to grief."
The term 'Ummah' in Quran, means a People who are adherents of a Messenger. For example, Ummah of Moses, are people or followers of Moses. Ummah of Muhammad are His followers, etc. It says every Ummah has a term, when their appointed term comes, God does not wait for one hour more or delay one hour less, surely He will send His messenger to read His verses again to guide them.