C. this is a clear appeal to emotion because it appeals to our emotions that get elicited when someone says "we, as human beings, ...". This is supposed to elicit our compassion and feelings of empathy towards other people.
For that reason C is the only correct answer.
I believe your answer would be C! Hope this helps =]
The answer is the last one, D. In retaliation to the creation of the Continental Army, Great Britain prohibited all trade with the colonies.