Select the option that is true regarding the following two statements labelled Assertion (A) and Reason (R).
A. A stable atom has the net charge of zero.
R. When the number of electrons does not equal the number of protons, the atom is ionized.

A

A is true but R is false.

B

Both, A and R, are true but R is not the correct explanation of A.

C

A is false but R is true.

D

Both, A and R, are true and R is the correct explanation of A.