Read the following claim. The chain reaction that produces thermonuclear bombs occurs rapidly.

Which sentence from the article provides the BEST support for the above statement?

A)Thermonuclear bombs and atomic bombs are both nuclear weapons, but they work differently at a basic level.

B)Thermonuclear bombs, on the other hand, get their power from combining nuclei together.

C)This mass loss is converted into energy, which is very intense and where fusion gets its explosive power.

D)The entire series of explosions in a thermonuclear bomb takes a fraction of a second to occur.