How Was Social Exclusion Manipulated in the Social Exclusion and Helping

Multiple Choice

How was social exclusion manipulated in the social exclusion and helping experiment?

A) By telling participants that a personality test showed "they were likely to be alone later in life."
B) By asking participants if they have ever been excluded from the activities of a friendship group.
C) By asking participants to think about a time in their lives when they had felt excluded.
D) By pointing out several personal traits that are likely to lead to social exclusion.