4.) "Therefore, fishing is the major industry" does not at all logically connect with the rest of the paragraph. The paragraph is speaking of two islands (Little Diomede & Big Diomede), and the last sentence brings up the completely unrelated topic of fishing.
The technique of alliteration is being used. Alliteration is the occurrence of the same letter or sound at the beginning of closely connected words.
Answer:
I would most likely go with C - ONLY BEFORE THEY BEGIN DRAFTING!
Explanation:
The interjection in this sentence is "ahem" (letter A)