A nurse is providing an in-service about medications that are first-generation antihistamines.Which of the following medications should the nurse include in her in-service?

Choice A rationaleAlbuterol is a beta-agonist used for treating asthma, not a first-generation antihistamine.Choice B rationaleDiphenhydramine is a first-generation antihistamine commonly used for allergic reactions.Choice C rationaleCertirizine is a second-generation antihistamine, not a first-generation.Choice D rationaleCodeine is an opioid analgesic and not related to antihistamines.