Which Correctly Describes the Structure of an Atom

Multiple Choice

Which correctly describes the structure of an atom?

A) There are always the same number of protons and neutrons.
B) There are always the same number of protons and electrons.
C) There are always the same number of neutrons and electrons.
D) The number of protons, neutrons, and electrons is always the same
E) There are never the same number of neutrons and protons.