I believe the answer is humor.
This is because, the mood of danger is shown because of policemen meaning something bad might or could have happened. The mood of mystery is shown because you do not know where the man is, or why the policemen is there. Suspense is shown because the man speaks up quickly.
Answer:
Du Bois certainly is an important thinker, but a poet? Yes, a poet
The first alternative is correct (A).
Stretching is a way to stimulate the muscles and ligaments of the human body to improve posture, breathing and pre-disposition of people. Several activities are part of stretching, such as correct breath control, the time each session should last, and the natural discomfort. However, bounceing the body is not part of stretching practices, it is part of some aerobic activities.