The answer is D: they have a similar range of personality characteristics as do those in general population without down syndrome
The correct answer is extroversion.
Extroversion refers to a personality trait that is exhibited as follows by extroverts: preference for being in social settings and interacting with others rather than being alone, enjoying being the center of attention and feeling energized and fulfilled when surrounded by other people. Since David enjoys being around people and participating in activities, he would likely score high in the extroversion measure of the Big 5 personality test.
Answer:
I would say maybe stress but also succes becuase its bringing them earnings
Explanation:
He formulated the theory that natural selection was a thing