in the 1960s, bob dylan

composed influential counterculture music.

was a student protester at the university of california at berkeley.

wrote the book slaughterhouse-five.

co-founded the students for a democratic society.

The answer is A:  composed influencial counterculture music.

 Robert A. Zimmermeman was the real name of the American folk singer and composer known as Bob Dylan. During the 1960s Bob Dylan wrote and sang many songs that were considered protest songs. Some of his songs were included in movements, such as Anti-war and Civil Rights movements. "Like a Rolling Stone", "Blowing in the Wind" and "Mr Tambourine Man" are some of his songs.