Which of these BEST describes the My Lai Incident in early 1968?

A)a massacre of unarmed Vietnamese villagers by U.S. troops.
B)a controversial moment at the Woodstock concert in New York
C)an anti-war protest on an American college campus that turned violent
D)a race riot that occurred during the “Freedom Rides” in Mississippi in 1961.

A) a massacre of unarmed Vietnamese villagers by U.S. troops.