Which of the Following Aspects of Freud's Theory Have Been

Which of the following aspects of Freud's theory have been challenged by new research?

A) His idea of unconscious processes and the role they play in shaping human behavior.
B) His proposition that development proceeds through a series of stages.
C) His idea that the first years of life help shape adult personality.
D) His portrayal of the elementary school years (latency period) as free from sexuality and unimportant for personality development.