Three 250 $\mu$ C Charges Are Placed on Tiny Conducting Spheres at the Spheres

Multiple Choice

Three 2.50 $\mu$ C charges are placed on tiny conducting spheres at the ends of 1.00 m-long strings that are connected at 120 $\degree$ angles as shown below.The magnitude, in N, of the tension in any one of the strings is:

A) 1.88 *10^-2.
B) 3.25 * 10^-2.
C) 3.75 * 10^-2.
D) 6.50 * 10^-2.
E) 7.50 *10^-2.