What is stated in paragraph 1 about Adler?...

Câu hỏi: What is stated in paragraph 1 about Adler?

A He had found that the responses by family members had little to do with personality.

B He believed that it was the actual birth order that affected personality.

C He was one of the first to study the effect of birth order on personality.

D He was the only one to study birth order.