What conditions are most likely to respond to treatment with antihistamines? Select all that apply.

Choice A reason: Allergic rhinitis is a common condition that responds well to antihistamines, which can alleviate symptoms such as sneezing, runny nose, and itching. Choice B reason: Otitis media is an inflammation of the middle ear and is not typically treated with antihistamines. Choice C reason: Myocarditis is an inflammation of the heart muscle and is not treated with antihistamines. Choice D reason: Bronchitis involves inflammation of the bronchial tubes and is not primarily treated with antihistamines. Choice E reason: Contact dermatitis, which is an allergic skin reaction, can be treated with antihistamines to relieve itching and rash.