Which action indicates a hockey player is playing defense?

Which action indicates a hockey player is playing defense?  

A.  

The player takes a shot on the goal.  

B.  

The player passes the puck to a teammate.  

C.  

The player skates to become open for a pass.  

D.  

The player stays back to protect the team's goal.

D is the answer, 100% on Plato and Odyssey. Hope this helps!

b and c would be the answers