What elements does the author use in this passage to support his primary purpose? check all that apply. factual information opinions quotations from experts description of how events unfolded rhetorical questions

The first, fourth and fifth  

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"The Americans knew that the Soviets were watching them as the warehouses were being built, so they needed to be careful not to do anything that would tip off the Soviets to the true purpose of the construction. Before the digging had progressed very far, someone raised a security issue: what would happen if the Soviets noticed that the "engineers" who were working on the project, emerged from the buildings covered in dirt? Would that be a red flag for the Soviets? The U.S. wasn't taking any chances. They had a washer and a dryer installed in the warehouse so the diggers could wash their uniforms before leaving the warehouse. —The Dark Game, Paul B. Janeczko What elements does the author use in this passage to support his primary purpose? Check all that apply. factual information opinions quotations from experts description of how events unfolded rhetorical questions "

Explanation:

In the above text the author revealed his arguments through factual information (when he affirms how careful Americans were to not reveal secret information to the Soviets), a description of how the events occurred (throughout the text, the author shows how the stores were being established and how it was secret) and rhetorical questions (when the author asks "what would happen if the Soviets noticed that the" engineers "who were working on the project, emerged from the buildings covered in dirt? Would that be a red flag for the Soviets? ")

Factual information is information based on facts that can be proven.

Description of how the events unfold is the narration of successive situations that happen within the context of a narrative.

Rhetorical questions are questions that do not require answers, but seek to generate reflection.

this labor, by slow prudence to make mild.   c. ability to govern well