In a Study by Bornstein at Al

In a study by Bornstein at al. (1987) , participants were asked to make a series of decisions with 2 confederates. During the decision-making process, the two confederates often disagreed so the participant was forced to be the tie-breaker. The results showed that participants were more likely to side with the confederate who:

A) was familiar to them.
B) had expert knowledge on the subject.
C) was attractive.
D) was of the same gender as the participant.