Two Blocks,joined by a String,have Masses of 8

Multiple Choice

Two blocks,joined by a string,have masses of 8.0 and 9.0 kg.They rest on a frictionless horizontal surface.A 2nd string,attached only to the 9.0-kg block,has horizontal force = 30 N applied to it.Both blocks accelerate.Find the tension in the string between the blocks.

A) 16 N
B) 2 N
C) 14 N
D) 64 N
E) ​240 N