I think the answer is A.) giving the readers clues about what is next to come:)
Answer:
Anu tried hard to finish her project in a week BUT it seemed an impossible task
Explanation:
According to the given sentence, there is a space for a subordination conjunction to be added to complete the sentence and the answer is BUT.
A subordintating conjunction is used to link two ideas, or clauses within a sentence.
I believe that the most fitting answer for this question would be Victor's curiosity and thirst for knowledge. Although this is typically seen as a positive characteristic, it ends up consuming Victor and contributing to his downfall. It leads to him creating his monster, which ultimately destroys him in the end. Hope this helps.