This is more of a psychology question than an English question, but coping mechanisms in general are all used to deal with stress. Stress covers a variety of influences as anything that affects one's mental or physical state.
Foreshadowing is when an author uses symbolism, an event, a small detail, or even a part of dialogue to be a warning or indication of a future event. An author might use this because they want to give the reader knowledge about a future event or to tease them.
I believe the answer is B. instrument for weighing.
Please correct me if I'm wrong!! :)
C. My hoary car shines bright in the warm sunlight.
When people annoy me or get me mad.