Your company wants to open a shipping facility that would produce perpetual revenues of $4 million per year if exchange rates rise or $6 million per year if exchange rates fall. The perpetual operating costs will be $2 million per year. If the probability of exchange rates rising is 0.6, the expected perpetual revenues from the shipping facility would be: 
a) $4.4 million 
b) $4.8 million 
c) $5.2 million 
d) $5.6 million