The term "ped/o" is commonly associated with which two concepts?

The term "ped/o" is derived from the Greek word "pedos" which means "foot," and the Latin word "puer," meaning "child." Therefore, in the context of medical terminology, "ped/o" is commonly used to refer to concepts associated with both children and feet.

In medical fields, "pediatric" refers to the branch of medicine that deals with children and their diseases, while "pedal" pertains to the foot. This duality in meaning makes the first choice the most accurate representation of the term "ped/o." The other options do not connect with "ped/o" in the same way, as they relate to different prefixes and medical terms entirely.