Is gossip a secondary source or a primary source?

Which of the following groups of sentences most accurately describes the cuban missile crisis?

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

Who was the first explorer to sail all the way down the mississippi river