What made it seem as if America had lost its innocence in 1963?

A the timid approach of President Kennedy toward civil rights

B the assassination of President John F. Kennedy in Dallas, Texas

c the swearing in of Lyndon B. Johnson as the new President

D the Soviets' successful launch of Sputnik 1

The assassination of President John F. Kennedy in Dallas, Texas made America had lost its innocence in 1963.

Answer: Option B

Explanation:

The year of 1963 was one of the major years in the history of the United States of America because this year saw the killing of the then president of the country which was John F. Kennedy. The president was killed when he was being shot.

This incident shocked the people because they thought that the country where even the president is not safe or secured and it is not safe for any one else living in that country. Therefore people came to the conclusion that the United States of America had lost it's innocence and were shocked at the guts of the person who had committed the crime.