Concept:Convectional rains happen when strong surface heating makes warm, moist air rise and cool quickly.Explanation:These rains are most common near the equator because the sun is almost overhead all year.This produces intense heating and rapid evaporation.Warm, moist air rises in strong currents, then cools and condenses to form large cumulonimbus clouds.Heavy thunderstorm rainfall follows, often every afternoon.These conditions are typical of equatorial regions.Answer:D. equatorial areas