Research Has Found That Both Intrinsic and Extrinsic Motivation ____

Multiple Choice

Research has found that both intrinsic and extrinsic motivation ____.

A) are common in humans and other species
B) are common in humans but completely unheard of in other species
C) are common in humans but other species seem to mainly be driven by intrinsic motivation
D) are common in humans but other species seem to mainly be driven by extrinsic motivation