I would say the answer is C
Correct answer:
A) a massacre of unarmed Vietnamese Villagers by US troops
<u>My Lai was named one of the most horrible massacres against unarmed civilians during the Vietnam War. It happened on March 16, 1968</u>, a company of American soldiers brutally murdered the majority of people in the village of My Lai. More than 500 people were counted dead.
I'd have to say C. The whole thing around McCarthy was him accusing people of being communist