Cialdini's (1978)study on the Lowballing Technique,involving Student Participation in a Psychological

Cialdini's (1978) study on the lowballing technique,involving student participation in a psychological experiment,found that:

A) participants who were asked to sign up for a study,and then asked if they could come at 7:00 a.m. ,were more likely to attend than participants who were first told the study started at 7:00 a.m.
B) participants who were first told that a study started at 7:00 a.m.were more likely to attend than participants who were asked to sign up before they knew the time of the study.
C) participants were more likely to attend a later study if they first agreed to sign a form for the experimenter.
D) participants were more likely to sign a form for an experimenter if they had first been asked to participate in a later study.