Elaborate what knowing that carbon-14 has an atomic number of 6 tells us about the atom

This information tells us that carbon-14 is an isotope of carbon-12. Isotopes are atoms with the same atomic number but different mass number. The Atomic number is the number of protons in the nucleus of an atom. The Mass number is the total number of protons and neutrons in an atomic nucleus. Both carbon-14 and carbon-12 have 6 protons, 6 electrons, but they differ in the fact that carbon-14 has 8 neutrons as opposed to 6 neutrons in carbon-12.

the answer would be b i believe