Please explain how to get this answer

Based on the following information concerning Ford preferred stock,

Preferred dividend per share: $9

Beta: 0.85

Risk free rate: 5%

Market risk premium: 6%

Calculate the expected price in 4 years. You expect the risk free rate to decrease to 3% and the market risk premium to increase to 10% in 4 years.

a.$78.26

b.$76.43

c.$74.22

d.$80.65