[单选题]
An electron and a proton are sepad* y5tshva+f* rated by a distance of 1.0 m. Wh3pr ,6l,b; e2qi w qggvb4ks7gat happens to thplivg 34 ,g6k2,qqb;esw 7grbe magnitude of the force on the proton if a second electron is placed next to the first electron?
A. It quadruples.
B. It doubles.
C. It will not change.
D. It goes to zero.
