Three Point Charges Each Equal to 10 Microcoulombs Are Located

Three point charges each equal to 10 microcoulombs are located at x = 1m, x = 2m, and x = 3m, respectively, on the x-axis. What is the magnitude of the electric field at the origin?

A) 2.25 × 10³ N/C
B) 1.22 × 10⁵ N/C
C) 1.75 × 10⁶ N/C
D) 2.70 × 10⁴ N/C
E) 1.65 × 10⁴ N/C