Read the quotation from emerson's "self-reliance," and then answer the question. "trust thyself: every heart vibrates to that iron string." what is the meaning of the quotation? a. trust yourself and you will find strength. b. trust yourself and you will discover love. c. trust yourself and you will discover truth. d. trust yourself and you will establish faith.

I believe the answer would be A, trust yourself and you will find strength. The options B and D is out of the question due to the topic sentence being "self-reliance" and the sentence sounding firm and strong. Option C could fairly well be another answer, but to find truth, you must observe what is around you (not literally). It is A, you have to trust yourself, and when you trust yourself, you always have grand amounts of strength in yourself (confidence). 

The answer is d. prior knowledge. she breaks it into parts in order to figure out what other words have the same parts to the word and put the meanings together.