A prominent theme that is used would be more feelings and emotions.
The correct answer is one is focused on concrete details in the text; the other is focused on ideas more subtly implied by the text
Explicit deals with details directly spoken, while inferential deals with infering, that is, some people incorrectly describe it as "what the author was trying to say".
Either at the beginning of the first paragraph (which is where it normally is) or you could put it where ever you'd like in the intro. Wherever it makes the most sense.
Agreed because the other ones wouldn't make sense