[单选题]
Which of the following is not considered to be on4wvxp-4/7 7 wqxj8+bhj ssc)vd kr7 yde of the four fundamental f1zgwih:4bj ;yp k 0obja6k*k;orcepi4z o:bj;0*wh k1;kjygkb 6as?
A. the gravity force
B. the meson force
C. the weak nuclear force
D. the strong nuclear force
E. the electromagnetic force
