Dr Sheffield Wants to Investigate the Causal Relationship Between Frustration

Dr. Sheffield wants to investigate the causal relationship between frustration and memory. She divides participants into two groups using random assignment. One group is given a problem to solve that has no solution, inducing frustration, while the other group is given a problem to solve that has a solution. Then both groups have their memory tested. The group that is in the frustration condition can also be called the

A) comparison group
B) control group
C) experimental group
D) posttest group