A writer sometimes chooses to end a sentence with a preposition because doing so makes the sentence more
A. Grammatical
B. Awkward C. Formal D. Clear

The correct answer is D. Clear.

Explanation:

If you put a preposition at the end of a sentence, it makes it less formal and it is not entirely grammatically correct. You should avoid placing prepositions at the end of sentences if you are trying to sound more formal or educated.

However, prepositions at the end of a sentence make it less awkward and more clear to understand - take a look at these examples:

With whom are you going? - preposition at the beginning of the sentence, makes it sound very formal and slightly awkward, but grammatically correct.Who are you going with? - preposition at the end of the sentence, makes it sound informal and clear, but grammatically incorrect.

The answer is "passing blame".

Explanation:

The tones seen in this excerpt could be described as a fault, they indicate that perhaps the speaker also isn't responsible for the death.  On the other hand, he says also that guy's behavior was responsible for the "horrible monster" that Black Cat, because it had "seduced him" himself to also be murdered (or persuaded him). Thus the black cat is accused.