To refuse to use or buy something as a protest is known as (1 point)

A. The Militia
B. Natural law
C. Boycott
D. Repeal

C. Boycott

The correct answer is C. Boycott.

The correct answer is C. Boycott.

To arrive at this answer, you can break down the question and consider the definitions of each option.

A. The Militia: The militia refers to a military force composed of civilians, trained as soldiers, who are called upon in times of emergency. Since the question asks about a protest act, this option does not align with the context.

B. Natural law: Natural law is a philosophy that suggests certain principles are inherent in nature and can be understood through reason. While it may be referenced in various contexts, it is not specific to protesting or refusing to use or buy something.

C. Boycott: The term "boycott" means to refuse to use, buy, or participate in something as an act of protest or as a way of expressing disapproval. This option aligns with the definition provided in the question, making it a suitable answer.

D. Repeal: Repeal refers to the act of revoking or invalidating a law, regulation, or policy. While this action can be part of a collective protest, it is not directly synonymous with refusing to use or buy something.

Considering the explanations above, the correct answer is C. Boycott.