[单选题]
An electron and a prkceeuv -.phc 6p ea6 x*ef/;o(sdx+r.otn y k3rz0-x 0:bxk7bston are separated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electronb-ky7z s0rkx0x:nbt3 is placed next to the first electron?
A. It quadruples.
B. It doubles.
C. It will not change.
D. It goes to zero.