What is the force acting on proton that is in a \( 4.0 \times 10^{4} \mathrm{Vm}^{-1} \) uniform electric field?

A \( 8.4 \times 10^{-16} \mathrm{~N} \)

B \( 6.4 \times 10^{-15} \mathrm{~N} \)

C \( 4.6 \times 10^{-15} \mathrm{~N} \)