Which statement about the number of protons and neutrons in a nuclear change is correct?

Question

responses-

a- The total atomic mass before and after the change remains the same, but the total charge is different.

b- The relative numbers of protons and neutrons are the same before and after the change.

c- The total charge before and after the change remains the same, but the total atomic mass is different.

d- The relative numbers of protons and neutrons can differ before and after the change, but the total number of those particles remains the same.

Answer 1

d- The relative numbers of protons and neutrons can differ before and after the change, but the total number of those particles remains the same.