Researchers Conducting an Epidemiological Study Are Concerned About the Influence

Researchers conducting an epidemiological study are concerned about the influence of social desirability factors.In other words,the researchers are concerned that

A) the editors of the journal where they hope to publish their results are biased toward "feel-good" articles.
B) they will be unable to communicate their hypotheses to participants.
C) participants will tend to withhold embarrassing information and report information that places them in a favorable light.
D) they will not be able to sample as many segments of society as they would like.