The peak years of psychedelic rock were 1967’s Summer of Love and 1969’s Woodstock Festival. About these two events, which one is not true?

A、Summer of Love in 1967 was a time when young people in America got together to question the society in which they grew up.
B、That famous summer attracted over 100, 000 young people flocking to San Francisco to enjoy a summer of drugs, sex and rock & roll.
C、Woodstock Festival in 1969 attracted over 400, 000 people to attend.
D、In Woodstock Festival, many Hippies took drugs, which caused a lot of fighting and violence.