A +500-μC Point Charge Is Placed at the 0 $\vec { E }$

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

A) 1.4 m from the 0 cm mark
B) 2.5 m from the 0 cm mark
C) 2.9 m from the 0 cm mark
D) 3.3 m from the 0 cm mark
E) 4.7 m from the 0 cm mark