I would have to say the answer is c. Just a guess though. I personally would be more formal when writing a cover letter and it does need to be proofread. <span />
B.
How could you find something if you don't know what you're looking for?
The effect of these words or first the meaning is that the author, Sojourner Truth an ex slave is obliged to those who listened to her speech and is concluding her speech and has stated that while white women may be oppressed too their oppression is still not as much as black women have suffered with the added oppression of slavery. She also states that she can work just as hard as a man so deserves to have equal rights.
I believe the answer is D