Kiesler and Baral Manipulated the Self-Esteem of the Participants in Their

Kiesler and Baral manipulated the self-esteem of the participants in their study by:

A) giving them false feedback on their performance on a memory and math test.
B) giving them false results on a self-esteem test administered by the Yale psychology department.
C) giving them photos of either beautiful or ugly people to rate.
D) having them dress in ill fitting clothing and stand in front of mirror.