Why would a pediatrician measure both height and weight each time a child goes to their office?

a. It is a procedure that has been habitually practiced.
b. It is a non-threatening way to begin a physical, especially if shots are to be given.
c. Most parents like to hear about their child's growth patterns.
d. Deviations can indicate problems in health that affect physical growth.

d. Deviations can indicate problems in health that affect physical growth.