The right answer is "He was an open supporter of black civil rights."
Explanation:
The crucial issue of civil rights was in John F. Kennedy´s presidential. campaign in 1960. He viewed the civil rights issue as a legal, constitutional and moral problem. Once `president, however, he adopted a cautious approach because of his narrow victory and small working margins in Congress. Even so, he pushed for civil rights on different fronts. For example, he appointed a large number of African-American officials.
