A Push of Magnitude P Acts on a Box of Weight

Multiple Choice

A push of magnitude P acts on a box of weight W as shown in the figure. The push is directed at an angle θ below the horizontal, and the box remains a rest. The box rests on a horizontal surface that has some friction with the box. The friction force on the box due to the floor is equal to

A) P sin θ
B) P cos θ
C) 0
D) P cos θ + W
E) P + W