Which of the Following (Actual)research Findings Represents the Most Serious

Which of the following (actual) research findings represents the most serious challenge to evolutionary explanations of love and attraction?

A) Men tend to prefer younger women and women tend to prefer men of the same age.
B) In areas of the world where parasitic diseases are prevalent, men and women value physical attractiveness.
C) Men tend to place more emphasis on sex in a relationship than women.
D) Women are less likely than men to admit the importance of physical attractiveness, but observations of behaviours reveal no gender differences.
E) Men become more upset at sexual infidelities and women at emotional infidelities.