What important distinction did president john f. kennedy make regarding civil rights?

Kennedy emphasized that civil rights was a matter of morality and ethics and that it was everyone's responsibility.

On the day of his assassination, John F. Kennedy was not in Texas by chance. In deciding to attend a political event there in 1963, he knew he needed to pay special attention to the state if he wanted to win re-election. The motive: the bill introduced that year against racial discrimination that would alienate virtually the entire South of the country to the Democratic Party, whose electoral base was there. And Kennedy foresaw that. He did not see his Civil Rights Act passed, which occurred with his successor, Lyndon Johnson, on July 2, 1964. However, the initiative put an end to various racial segregation systems in the United States and one of the president's main legacies, albeit at a very high price for the Democratic Party.

the answer for 3 is b and the answer for 4 is d