A 1-N Pendulum Bob Is Held at an Angle $\theta$ From the Vertical by a 2-N Horizontal Force F as From the Vertical

Multiple Choice

A 1-N pendulum bob is held at an angle $\theta$ from the vertical by a 2-N horizontal force F as shown. The tension in the string supporting the pendulum bob (in newtons) is:

A) cos $\theta$
B) 2/cos $\theta$
C)
D) 1
E) none of these