The argument that development is influenced either by nature or by nurture

A) was cast aside as a major controversy as it became clear that neither side could completely
explain human behavior.
B) is still a major point of contention and controversy within the field of child development
in the 21st century.
C) was clearly resolved in the 1950s by researchers who argued that humans are totally
determined by their experiences.
D) is of no theoretical or practical interest to individuals who study child development today.

A