Final answer:
The average resting respiratory rate for a 12-month-old child is approximately 25 breaths per minute, reducing from infancy to adolescence to reach adult rates. The correct option is c.
Step-by-step explanation:
The average resting respiratory rate for a 12-month-old child is approximately c. 25 breaths per minute. Respiratory rates change as children grow, starting quite rapid in infancy and slowing towards adolescence. For infants under 1 year of age, it is normally between 30 to 60 breaths per minute.
As a child reaches around 10 years old, the rate decreases closer to 18 to 30 breaths per minute. By adolescence, respiratory rates further decline to approximate adult rates of 12 to 18 breaths per minute. Option c. is the correct one.