Which of the Following Indicates a Hypothesized Mate Preference That

Which of the following indicates a hypothesized mate preference that appears to be adaptive in the modern environment?

A) When wives are six years younger than their husbands, they have fewer children than wives who are six years older than their husbands.
B) When the man is higher than the woman on attractiveness, the couple produces more offspring.
C) Women whose high school photographs were rated as more attractive produced more children than women whose high school photographs were rated less attractive.
D) all of the above