Part a: which statement identifies the central idea of the text?

a
whether the scary experience is real or not, people often feel a sense of relief after they experience what is easily mistaken for elation.
b
while the brain function of some people decreases following a scare, other people experience increased brain function related to stress.
c
experiencing fun-scary things together has proven to strengthen bonds between people and make relationships last longer.
d
many people who willingly engage in scary experiences in safe settings experience positive reactions in their brains.

Which line from the story of my life by helen keller is an example of a simile? during the whole trip i did not have one fit of temper, there were so many things to keep my mind and fingers busy. i was like that ship before my education began, only i was without compass or sounding-line, and had no way of knowing how near the harbour was. one day, while i was playing with my new doll, miss sullivan put my big rag doll into my lap also, spelled "d-o-l-l" and tried to make me understand that "d-o-l-l" applied to both. child as i was, i at once felt the tenderness and sympathy which endeared dr. bell to so many hearts, as his wonderful achievements enlist their admiration.