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 />
Answer:
it can be at least a foot thick and contains lots of tannins, a compound that makes redwoods resistant to insects, fungus and diseases.
Explanation:
i did it!
Answer:it wasn’t fair
Explanation: you gotta be able to negotiate with other people