$\mathrm { A } + 5.00 - \mu \mathrm { C }$

$\mathrm { A } + 5.00 - \mu \mathrm { C }$ point charge is placed at the $0.0 \mathrm {~cm}$ mark of a meter stick and a $- 4.00 - \mu \mathrm { C }$ point charge is placed at the $50.0 \mathrm {~cm}$ mark. At what point on a line through the ends of the meter stick is the electric field equal to zero?

A) $1.4 \mathrm {~m}$ from the $0 \mathrm {~cm}$ mark
B) $4.7 \mathrm {~m}$ from the $0 \mathrm {~cm}$ mark
C) $3.3 \mathrm {~m}$ from the $0 \mathrm {~cm}$ mark
D) $2.9 \mathrm {~m}$ from the $0 \mathrm {~cm}$ mark
E) $2.5 \mathrm {~m}$ from the $0 \mathrm {~cm}$ mark