Read the paragraph from the introduction:
Poetic feet are the basic units of meter, the syllable-counting rhythm of verse. A foot consists of a stressed syllable and some number of unstressed syllables. Putting one in front of another other, like an acrobat walking across a
tightrope, poets string together poetic feet to form lines of poetry.
What effect does the tightrope analogy have on the reader's understanding of meter?
It highlights how an acrobat and a poet take similar approaches to their artistry

It creates a connection between the terms for "feet," and highlights a creative process

It emphasizes how lines of poetry are composed, and rhythm is created.

It helps explain why poetry uses the term "feet," and provides a visual image.