Cultural variations in the emergence of basic skills such as sitting and walking demonstrate that environmental factors

A) do not affect early motor development.
B) can accelerate or slow early motor development.
C) can accelerate early motor development.
D) can slow early motor development.

Motor Development

The progression of muscle coordination, strength, and movement patterns that enable physical activities and tasks over the course of a person's life.

Environmental Factors

Aspects of the surroundings that can affect living organisms, including both natural and human-made conditions.

Early Motor Development

The progression of muscular coordination and use of limbs and body in early life stages.