A Crate of Weight W Is Being Pushed Across a Horizontal

Multiple Choice

A crate of weight W is being pushed across a horizontal surface by a force directed at an angle of 20 $\degree$ below the horizontal.What is the magnitude of the normal force on the crate?

A) It is less than W.
B) It equals W.
C) It is more than W.
D) None of the above since the coefficient of kinetic friction is not given.