Answer:
c. conduct a joint space program designed to land humans on Mars.
Step-by-step explanation:
Sherif's study of conflict resolution under the realistic conflict theory(RCT) or realistic group conflict theory explains that intergroup conflicts could arise as a result of limited or scarce resources. This could give rise to situations where each group becomes intolerant and resorts to a zero sum fate for conflict resolution. Sherif in his theory advises that such conflicts could be resolved by superordinate goals where the groups may come together to pursue a common goal.