Use the Following Information to Answer the Question(s) Below

Use the following information to answer the question(s) below.
Suppose that the market portfolio is equally likely to increase by 24% or decrease by 8%. Security "X" goes up on average by 29% when the market goes up and goes down by 11% when the market goes down. Security "Y" goes down on average by 16% when the market goes up and goes up by 16% when the market goes down. Security "Z" goes up on average by 4% when the market goes up and goes up by 4% when the market goes down.
-The expected return on the market rate is closest to:

A) 0%
B) 4%
C) 8%
D) 16%