Concept:The correct word must be the most direct opposite of "accept" in the given context.
Explanation:In the sentence, "accept the blame" means to agree that one is responsible for a mistake.
The manager does the opposite: he does not admit the blame.
"Denied" means to refuse to admit the truth or existence of something.
Therefore, "the manager denied the accusation" is the opposite of "accept the blame".
"Criticized" and "addressed" do not express refusal.
"Refused" does not naturally pair with "accusation" in this context.
Thus, "denied" fits both grammatically and in meaning.
Answer:D. denied