During a Study by Oishi (2007),participants Played a Trivia Game

During a study by Oishi (2007) ,participants played a trivia game against four other students.Participants were allowed to help the other players,even though it could cause them to lose the game.Under what conditions were participants more likely to help other players?

A) When they were new to the group.
B) When they had been in the group longer.
C) When they had a clear lead in the game.
D) When they were the only female.
E) When they were the only male