Gay Pride Month Commemorates the Beginning of the Modern Gay

Gay Pride Month commemorates the beginning of the modern gay rights movement in:

A) 1993 when President Clinton implemented the military's "Don't Ask, Don't Tell" policy.
B) 1969 when riots occurred in New York after police officers raided a gay bar.
C) 1973 when the American Psychiatric Association removed homosexuality from its official list of mental disorders.
D) 2005 when the Canadian Parliament passed a bill legalizing gay marriage throughout the country.