Answer:
Remember, a thesis states your position on your topic. A question cannot state anything because it is not a statement. A question is a great lead in to a thesis, but it can't be the thesis.
B.which
because they used the word stayed which is past tense "that" would be more of a present tense word
The question must have a single focus for research from valid sources.
The question must be simple so that any audience will be able to understand it.
Nationalism refers to a feeling of being proud and loyal to one's country and often with the belief that his country is better than that of the others. Patriotism, on the other hand, is the devoted love and support for one's country often shown through things like respect for the flag and others. Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help.