Summarize the “Overview” in your own words

A summary is written in your own words. A summary contains only the ideas of the original text. Do not insert any of your own opinions, interpretations, deductions or comments into a summary. Identify in order the significant sub-claims the author uses to defend the main point. Copy word-for-word three separate passages from the essay ...

Explanation:

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves

answer; motor (efferent)neurons;