Researchers Know That Couples Find Discussing Sex Difficult

Researchers know that couples find discussing sex difficult. How has this affected research on the topic of sexual communication?

A) It has encouraged researchers to pursue the topic in hopes of changing attitudes of couples.
B) It has made many researchers reluctant to study the topic.
C) It has led many researchers to use observation instead of self-report as their means of collecting data.
D) It has led researchers to use covert methods of investigation, such as eavesdropping in bars and getting roommates to report on the conversations of their roommates.