Final answer:
The correct answer to how text is positioned between the margins is 'alignment'. Alignment can be left, right, center, or justified. It is part of the overall setting of text on a page, which also involves indents and margins.
Step-by-step explanation:
In reference to the question about a setting that refers to how text is positioned between the margins, the correct answer is a. alignment. Alignment in document formatting is the adjustment of text within the margins of a document. It determines how text is positioned horizontally between the left and right margins, and can be left-aligned, right-aligned, centered, or justified.
Indenting refers to the space that is added before the first line of a paragraph, which can help signify the start of a new paragraph. The terms orphans and margins also relate to the appearance and formatting of text but do not describe how text is positioned between the margins. Orphans involve single lines at the bottom of a page, while margins are the spaces around the text of a document where no text appears. Together, margins, alignment, and indenting contribute to the overall visual setting of the text on the page