What strategy does the Robber’s Cave study suggest for reducing hostility between groups?  a. Sharing social norms  b. Being together in the same environment c. Working together in pursuit of common...

What strategy does the Robber’s Cave study suggest for reducing hostility between groups?

 a. Sharing social norms

 b. Being together in the same environment

c. Working together in pursuit of common goals

 d. Playing fun competitive games like tug-of-war