Linus Claims That the Added Gravitational Force of Neutrons Holds

Linus claims that the added gravitational force of neutrons holds the particles in a nucleus together. Linnea says that they stick together because they lose their electric charge when they form a nucleus. Which one, if either, is correct, and why?

A) Linus, because more particles exert gravitational forces on one another than exert electromagnetic forces.
B) Linus, because the numerical magnitude of G/k_e is 7.42 × 10−²¹.
C) Linnea, because the numerical magnitude of G/k_e is 7.42 × 10−²¹.
D) Both, because electric charge is lost and then gravity holds the nucleus together.
E) Neither, because gravity is not lost, and the numerical magnitude of k_e/G is 1.35 × 10²⁰.