According to the Adlers' research, the peer groups supported boys'lower academic achievement.
Why is Adler research famous?
He was an Austrian physician & psychiatrist who is best-known for forming the school of thought known as individual psychology. He is famous for his concepts of the inferiority feeling & complex which he believed played a major part in the formation of personality.
In one of his research, he was able to prove that the peer groups supported boys' lower academic achievement.
Therefore, the Option C is correct.
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