Concept:Plants adapted to survive in deserts or very dry areas are called xerophytes.Explanation:Hydrophytes live in water and are adapted to aquatic environments.Epiphytes grow on other plants or objects for physical support only.Mesophytes grow best in moderate moisture conditions.Xerophytes have special features like thick leaves and water storage to survive in arid regions.Therefore, plants of deserts or very dry areas are xerophytes.Answer:C. xerophytes