Can someone pleaseee help with these :(

How could a works-cited list a reader determine whether to believe the claims you make in an essay? a. by synthesizing your conclusions into a simple objective summary o b. by proving that your claims are supported with credible evidence ) c. by allowing you to make claims without quoting other writers o d. by providing a clear organizational structure to your essay

Experimented with communism before taking part in a number of civil rights and antiwar protest

What is a characteristic of hunter-gatherer societies?