12-18 breathing movements per minute.✓Ճիշտ պատասխան
20-30 breathing movements per minute.
40-60 breathing movements per minute.
Բացատրություն
For the official exam, choose 12–18 breaths per minute. Separately, current medical guidance uses about 12–20 breaths per minute as the usual resting adult range, so 20 itself may still be normal.