Which command would be best to adjust line spacing in Word?

To adjust line spacing in Word, the most appropriate command is found in the Paragraph Settings. This section specifically allows users to customize various aspects of paragraph formatting, including line spacing options such as single, 1.5, double, and more. It also provides additional settings for spacing before and after paragraphs, which helps in creating visually appealing and well-structured documents.

Using the Font Settings primarily affects the appearance of text characters such as font type, size, and color but does not provide options for line spacing. Alignment Options focus on the horizontal placement of text within a paragraph, such as left, center, right, or justified alignment, which does not include modifying line spacing. The Styles Gallery enables users to apply predefined styles that may have specific formatting, but it does not allow for direct control over line spacing settings as the Paragraph Settings do. Thus, for adjusting line spacing effectively, the Paragraph Settings is clearly the best choice.