Which of the following statements is true of the classic Robber's Cave study by Sherif and Sherif (1967)?

a) It involved subjects sitting around a table judging lines shown on a tablet.
b) It showed just how obedient males and females can be when faced with an authority figure.
c) It centered around group behaviors, mainly those of social facilitation, social hindrance, and social loafing.
d) It demonstrated that when the in-group and out-group mentality develops, prejudice and hostility are likely to follow.

Answer: d