What does the "how" question about a thesis generally explore?

The "how" question regarding a thesis focuses on the method of argumentation. Specifically, it delves into the ways in which the author will support their main claim or assertion. This involves discussing the strategies, evidence, and reasoning that will be employed throughout the essay to build a persuasive case for the thesis statement. Understanding the "how" aspect allows both the writer and the reader to establish a clear pathway of logic and evidence that will guide the discourse, helping to ensure that the overall argument is coherent and compelling.

The other aspects mentioned in the other choices—main idea, background, and relevance—while important to the overall structure and comprehension of an essay, do not directly address the operational tactics or methodologies that underpin how the argument is articulated and supported within the text.