Which statement describes the charge of an

electron and the charge of a proton?

(1) An electron and a proton both have a charge of 1.

(2) An electron and a proton both have a charge of 1.

(3) An electron has a charge of 1, and a proton has a charge of 1.

(4) An electron has a charge of 1, and a proton has a charge of 1.