A Sales Manager Has Carefully Selected the Members of Two

A sales manager has carefully selected the members of two sales teams,team A and team B,so that they have as nearly as possible identical skills and abilities.Both are assigned potential customers in the same industry.Both groups are offered the same rewards.Team A consistently performs better than team B.What does this tell you about performance and motivation according to industrial psychology?

A) The level of ability has no impact on performance.
B) Team B can be more motivated than Team A but perform at a lower level.
C) Team A has higher motivation than Team B and therefore performs better.
D) Team A has the same level of motivation as Team B but still performs better.