Answer:
I believe the answers are A and B, please let me know if I am wrong.
Answer:
In the Introduction
The thesis will be at the end of the introduction because the other sentence introduce/bring up the thesis.
The thesis is the main point/message of the passage.
Mami might be telling that disobedience might lead to a situation of unpreparedness such like an attack from termites. If Negi won't be prepared although he has been told to be prepared, he will suffer the consequence.
Mami was cautious of the things that may happen and she makes some analysis on the things that may happen with a negative attitude.
Negi doesn't care about anything so he might encounter problems because of his disobedience.
