Concept:An antonym is a word with the opposite meaning. "Vindicate" means to clear someone of blame or to justify.Explanation:"Vindicate" means to prove someone is innocent or right. Its opposite is to charge someone with a fault. Among the options, "accuse" means to blame or charge with wrongdoing. The other options are synonyms: "exonerate" (clear from blame), "defend" (support), and "justify" (show to be right). Therefore, the correct antonym is "accuse".Answer:B. Accuse