a book the internet newspaper ect
Not sure aout the specific topic but you could write about a guy or girl in war and they write in a journal about the events of the horrific events.
hope this helps :)
I would say A or C would fit the role a topic sentence should play. Simply because B doesn't make sense unless given context with A. D doesn't make sense unless given context from A. So because of the lack of context between B and D if put in the first sentence, I would narrow it down to A or C. I'm assuming there is a was in between "Barbara" and "tired" within the first sentence. Hope that helps.
The answer is excessive rainfall that year