Which of the Following Is Generally True of Well-Developed Cumulonimbus

Multiple Choice

Which of the following is generally true of well-developed cumulonimbus clouds?

A) they are flat in appearance.
B) they are more likely to form in association with a warm front than a cold front.
C) they are incapable of producing rain.
D) they are incapable of producing hail.
E) they extend through all levels of the atmosphere and have explosive tops.