What was the counterculture?
A: citizens who questioned the established political and social norms.
B: a CIA plan to plant agents in student protest groups to inform on them.
C: a means of overthrowing a nation by infiltrating its military forces.
D: civil rights protesters who organized sit-in protests at lunch counters.
I think its, D.
Not D.
Google “counterculture” and read lots. Then let us know what you decide.