Answer:
She could not afford to keep them any longer
The sentence that would best fit at the beginning of a first paragraph and would also make the best topic sentence is: Mammoth hot springs is a popular attraction because the springs are unique. The correct answer would be option D. This sentence is the correct answer because it is the only sentence that introduces the topic.
B: a former slave. because of frederick being a slave in the 1800’s he isn’t ancient. C doesn’t make sense. therefor B is the answer