At a Price of $5/hour,Bob Wants to Hire Three Workers

Multiple Choice

At a price of $5/hour,Bob wants to hire three workers.When the price rises to $7/hour,Bob wants to hire only two workers.Bob's price elasticity of demand for workers is:

A) -0.83.
B) -1.20.
C) -0.33.
D) -0.40.
E) -0.10.