Most commonly "C", because they would want the reader to understand that something is different. Yes, they can change the style whenever they want to, but it would be more meaningful if they did it for a reason.
Answer:
"Why Do We Hate Love?"
1. We hate love for various psychological reasons. Love can arouse anxiety and threaten old defenses. In the past one could build emotional blocks that close off emotional feelings. When love is showed to such a person, they can become suddenly saddened, because they feel the pain of not being loved in the past. Being loved also questions a person's self-concept, thus, provoking identity crisis within. The love enjoyed in the family can also make a person to find love outside the family difficult, as they feel disconnected.
2. A "...many people are unaware that being loved or especially valued makes them feel angry and withholding."
Explanation:
The line dividing love and hate is very thin. For example, when sex is used as a tool to show love, hate may result if the other party does not approve of it. This is why young men should be careful to suggest or apply sexual maneuvers over their lovebirds. Love should be solidified before sex, allowing sex to result from love and not love from sex.
Either a cake nor cookies are to be served
Conjunctive adverbs connect one clause to another clause, or one idea to another idea:
Joanne was very good at math; however, she is not good at English.
Descriptive adjectives can be separated with commas in a sentence such as:
Joanne did not want to pet the smelly, wet dog.
The details create a positive mood, one of new beginnings. However, Mrs. Mallard has just received the news that her husband has died which is really an ending.