Some sentences are grammatically incorrect or inappropriate. Select the option that indicates the grammatically correct and appropriate sentence(s).

A. When virtuoso teams begin their work, individuals are in and group consensus is out.

B. As project progresses, however, the individual stars harness themselves to the product of the group.

C. Sooner or later, the members break through their own egocentrism and become a plurality with single-minded focus on the goal.

D. In short, they morph into a powerful team with a shared identity.