I think the answer is : B. preposition: through; object of the preposition: window
preposition describe a relationship between words in a sentence and the object of the preposition is the head noun within the noun phrase or the noun clause
hope this helps
There’s nothing for me to answer t
"His mind was crowded with memories; memories of the knowledge that had come to them when they closed in on the struggling pig, knowledge that they had outwitted a living thing, imposed their will upon it, taken away its life like a long satisfying drink."