C is not true. The thesis statement doesn't HAVE to be in the beginning.
The room was gaudy with its bright pink leather couch and purple walls.
Gaudy means tacky or too much of something. So that's the best way to figure this out.
This is a complete sentence because it has both a subject and a predicate.
Answer:
Tewodros had become increasingly unpopular over the years due to his harsh methods, and many regional figures had rebelled against him. Several readily assisted the British by providing guides and food as the expeditionary force marched towards Magdala, where the Emperor had fortified the mountaintop.