i dont rlly know this one but imma go for A or B
I believe it would be B, vanquish. For one to use such a fancy and strong word, would sound as if one were boasting. Example: "The young man brazenly claimed that he had vanquished the massive bear."
I would say that you would only use them when you are writing in the thousands or more other than that u don't use them
There is a number of words or phrases that you could use to help smooth the transition between sentence 1 and sentence 2, and here are some of them: also, in addition, additionally, furthermore, moreover, on top of that, etc. The meaning of the second sentence adds on top of the first one - so any of these transition words would be a good choice.
D. both Mowgli and Shere Khan have vowed to hunt the other down
