<h2>Strong and unique</h2>
The use of solar energy an affect...
The federal government should spend...
<h2>Weak</h2>
There are many limits to...
To much dependecy on technology...
B. Hillary because it is a name of a person and a name of a person is a proper noun.
I believe the correct answer is D. humorous and informal.
You can see in the excerpt that the narrator is talking about him/herself in a humorous manner by mentioning his/her eccentricities such as 'mismatched socks' etc. The tone is very light and funny, so A, B, and C would be incorrect answers.
Understanding figurative language requires uncovering its connotative meaning.