People Who Had to Choose Which of Three Hypothetical Candidates

People who had to choose which of three hypothetical candidates would make the best roommate made the best decision when:

A) they were allowed to deliberate over the pros and cons of each person.
B) they were forced to make a snap decision immediately after hearing the description of the three people.
C) they were given time to unconsciously deliberate on the potential roommates while they were actively engaged in an unrelated problem-solving task.
D) the descriptions of the potential roommates were presented subliminally instead of consciously.