[单选题]
There is a limit to thm ;4) wan1ek jhl;c) ph7a3+mus2 nknre size of vra 7jesdmjb9g st0e626rk,)a stable nucleus because of
A. the limited range of the strong nuclear force.
B. the weakness of the electrostatic force.
C. the weakness of the gravitational force.
D. none of the given answers
