[单选题]
There is a limit to ;p:a4fp)mto2a 6u bxa thd* m9qi.* zoe ; 7n ckfq4utfz./i)nmge size of 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
