Could the author of Zhouyi be Mencius?

It is generally believed that Mencius is a disciple of Zisi, who is the grandson of Confucius. Confucius has done a lot of research on the Book of Changes all his life. Only from this point, the Book of Changes can't be written by Mencius. Moreover, the content of the Book of Changes is mostly divination, which prevailed in the Shang and Zhou Dynasties, but this activity declined in the Warring States period when Mencius lived, so it can't be Mencius.

It is right for future generations to develop their thoughts on the basis of their predecessors, and it is normal to have a relationship of the same strain. Just because the ideas of future generations are the same or similar, it cannot be said that the ideas of future generations are the creation of future generations. What did you say?/Sorry?

Question: It is said that Huangdi Neijing was produced in the Warring States Period, and the earliest written record was in the Western Han Dynasty. Mencius also lived in the Warring States Period. Is there any evidence for Mencius to study Neijing? Forgive my ignorance, I really don't understand this question.