ABCs (it would be abc's if it was lowercase)
An apostrophe doesn't pluralize a word, an 's' does.
Answer: He is not sane... He killed a man only because his eye bothered him. Then he hid him under the floorboards. The only way he could possibly be sane is because he confessed to the police when he could've gotten away. He did the right thing in the end but I would still consider him insane.
Explanation:
Answer: Acknowledge new information expressed by others, and, when warranted, qualify or justify their own views in light of the evidence presented.
Explanation:
Because they felt like killing
Answer:2,3 and 4
Explanation: The wording in the first sentence just makes the punctuation wrong