Which of the following statements is true?

A) In an earlier study of boys who had already formed friendships,the Sherifs found that intergroup conflict undermined these original friendships.
B) The winning group shows more outgroup rejection than the failing group.
C) Ingroup-outgroup biases influence perceptions of the outgroup members,but not perceptions of the outgroup's products.
D) During conflict group members fail to make use of their stereotypes.

This statement accurately describes the findings of Sherif and Sherif's (1953) study on intergroup conflict among boys. They found that intergroup conflict undermined original friendships between boys who had already formed relationships, highlighting the negative impact of intergroup conflict on social relations.

B, C, and D are false statements. The winning group may have more positive attitudes towards their group but they do not necessarily show more outgroup rejection. Ingroup-outgroup biases can influence perceptions of both the outgroup members and their products. Lastly, group members may actually rely more on their stereotypes during times of conflict.