Short Answer: A
A really super writer could get away with putting the thesis statement in the conclusion of a paragraph piece. But present day English Departments have become very rigid about where the thesis is.
It is always in the introduction. The idea is that you have to guide your reader to the arguments that follow in the paragraphs to come between the introduction and the conclusion.
D. Both discipline and love are necessary in raising a child
This refers to the story "Marriage is a Private Affair" by Chinua Achebe.
Nnaemeka wants to wait until he can see his father and is able to tell him in person. He is worried that his father will hate the idea of the marriage, because Nene (his fiancé) is not from the Ibo tribe. Moreover, she was not chosen for him in an arranged marriage, as is tradition. Nnaemeka is worried his father will disapprove of the marriage. He ends up being right as the father is enraged to find out the news.