Which of the following MOST accurately describes the relationship between ATX and micro-ATX boards?

A.
Both ATX and micro ATX boards will fit in a laptop.

B.
Both ATX and micro ATX boards will fit in an ATX case.

C.
Both ATX and micro ATX boards will fit in a micro-ATX case.

D.
Micro-ATX boards do not fit in an ATX case, while ATX boards will.