A Point Charge Of $3.0 \mu \mathrm{C}$ Is Located on The $y$

A point charge of $3.0 \mu \mathrm{C}$ is located on the $y$ -axis at $y=4.0 \mathrm{~m}$ , and another point charge of $6.0 \mu \mathrm{C}$ is located on the $\mathrm{x}$ -axis at $\mathrm{x}=5.0 \mathrm{~m}$ . What is the magnitude of the electric field at the position $(5.0 \mathrm{~m}, 4.0 \mathrm{~m})$ ?

A) $2.7 \times 10^{-3} \mathrm{~N} / \mathrm{C}$
B) $2.7 \times 10^{3} \mathrm{~N} / \mathrm{C}$
C) $3.5 \times 10^{-3} \mathrm{~N} / \mathrm{C}$
D) $3.5 \times 10^{3} \mathrm{~N} / \mathrm{C}$
E) $4.5 \times 10^{3} \mathrm{~N} / \mathrm{C}$