Concept:"Deceived" means making someone believe a falsehood in order to trick them into doing something.
Explanation:In the sentence, Awa misled Ahmed so that he willingly gave away all his savings.
"Fooled" means exactly the same: to trick or mislead a person through lies or false pretences.
"Cheated" seems similar, but it usually means taking something from someone by dishonesty, and we do not ordinarily say "cheated someone into doing something".
"Cooked" and "betrayed" do not express the idea of misleading someone into an action.
Thus, the word nearest in meaning to "deceived" as used here is "fooled".
Answer:B. fooled