An internal factor that influences perceptual selection is:

A) repetition
B) contrast
C) intensity
D) motivation

Motivation is an internal factor that influences perceptual selection as it affects what we choose to attend to and perceive. When we are motivated, we tend to focus on information that is relevant to our goals or needs, and ignore or overlook information that is not. This can influence how we perceive and interpret stimuli in our environment. Repetition, contrast, and intensity are examples of external factors that can also influence perceptual selection.