1. Groups should establish desired norms, roles, and other determinants of effectiveness during which critical stage of team development?

A. norming

B. storming

C. performing

D. forming

2. This stage of group/team development consists of the most conflict and is when roles emerge.

A. forming

B. storming

C. norming

D. performing

3.Reinforcing changes after they occur is part of which stage in Lewin's Change Model?

A. freezing

B. forming

C. refreezing

D. changing

I need only right option with 2-3 sent-ences explanation