Which of the following best explains the success of the central African rainfall-prediction technique of observing the waxing crescent Moon?
A) When the Moon is aligned in a U-shape, it can hold more water, so there is more rain. When it is tilted, it can hold less, so the weather is drier.
B) When the Moon is in Capricorn, there is always more tempestuous weather, while when in Pisces, it is just plain rainy.
C) Clouds cover part of the Moon's surface, so the smaller the crescent, the more likely it is to rain.
D) The Moon's orientation varies seasonally, and so does the weather.