Answer and explanation

Correct answer: A. 110 to 160 beats per minute

  1. Step 1: A baseline rate of 110–160 beats per minute is considered normal.
Answer
110 to 160 beats per minute.
Why not the others: 60 to 90 beats per minute, 170 to 200 beats per minute and 40 to 60 beats per minute do not fit this picture as well.

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