The Study in Which Teams of 10-Year-Old Children Were Asked

The study in which teams of 10-year-old children were asked to write a story about rain forests demonstrated that

A) boys were better able to cooperate with their peers in this context than were girls.
B) boys were less able to cooperate with their peers in this context than were girls.
C) stories written by teams of friends were of higher quality than were stories written by teams of nonfriends.
D) stories written by teams of friends were of lower quality than were stories written by teams of nonfriends.