Refer to the Table Below

Refer to the table below. Which statement about the atoms in the table is accurate?

A) Atom 1 and atom 2 are isotopes of the same element.
B) Atom 1 and atom 4 have the same number of electrons in their outer shells.
C) Atom 3 and atom 4 have the same number of neutrons in their nuclei.
D) Atom 2 and atom 3 differ by six neutrons in their nuclei.
E) Atom 1 and atom 4 gain stability when they each lose one electron.