D. What is the work of the following features:
1. Foot note​

Footnotes are notes placed at the bottom of a page. They cite references or comment on a designated part of the text above it. For example, say you want to add an interesting comment to a sentence you have written, but the comment is not directly related to the argument of your paragraph.

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answer; (b) agriculture, food, and natural resources;

go to edit profile and on the ; eft hand side it has a bunch of options and the very last on says profile picture, click the blue edit sign next to it