Charges of 2 \( \mu\text{C} \) , 3 \( \mu\text{C} \) , 4 \( \mu\text{C} \) and 5 \( \mu\text{C} \) are placed at four corners of a square ABCD respectively having each side \( \sqrt{4.5} \) m. Find the net force at the center of the square where a 1 \( \mu\text{C} \) is placed.

A 112.33 mN

B \( 8\sqrt{2} \times 10^{-3} \) N

C 11.32 mN