Answer:
A. draft resisters and radical feminists
Step-by-step explanation:
The two groups that were engaged in symbolic burning as part of their social activism are draft resisters and radical feminists.
Draft resisters are people who refused to enlist in the army during the war and as a form of protest, they would burn their draft card.
Radical feminism was the movement that was popular in the 1990s where a group of women burned their bras in protest of their gender roles as mothers and housewives and wanted equal rights.