What do B. E.A. T mean in music

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Beat, in music, the basic rhythmic unit of a measure, or bar, not to be confused with rhythm as such; nor is the beat necessarily identical with the underlying pulse of a given piece of music, which may extend over more than a single beat.

Explanation:

the graph shows the price of a good compared to the quantity supplied.

this graph demonstrates how

    [d]:   " the amount consumed greatly changes with the price. "

answerthe above statement is correct(true)