Final answer:
The correct match for 'footnote' is option 1, explaining it as text at the bottom of a page to provide additional information, typically used to avoid disrupting the main text's flow.
Step-by-step explanation:
The correct match for the feature 'footnote' is a note of text placed at the bottom of a page in a document to provide additional information. This matches with option 1 from the provided answer choices. Footnotes are commonly used by writers to offer comments, explanations, or additional information that cannot easily be integrated into the main text. They are typically signaled by a superscript number following the text that the note refers to, and the corresponding note is found at the bottom of the page. This system allows readers to find the source of certain statements or information without interrupting the flow of reading.