What is the main advantage of the third member in a triad social group?
a. the third member can act as an arbiter during conflicts.
b. the third member can be a backup in many social situations.
c. the third member can be a source of knowledge.
d. the third member may convince others to join the group.

The correct answer is A. The third member can act as an arbiter during conflicts.

Explanation:  

Triads differ from dyads in number. and the third person in the triad could act as a mediator when a conflict is presented between the two other members. And this makes the triad stronger than the dyads, they are less likely to break up.

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