232. Find out whether there is any grammatical error in below sentence. A small baby breathes about / 45 times per minute while / a child of about six years breathes about 25 times per minute.

A. A small baby breathes about
B. 45 times per minute while
C. a child of about six years breathes about 25 times per minute
D. No error
✅ The correct answer is option D.

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