Carl is an option seller. in anticipation of a depreciation of the British pound from its current level of $1.50 to $1.45, he has written a call option with an exercise price of $1.51 and a premium of $0.02. if the spot rate at the options maturity turns out to be $1.54, what is carls profit or loss per unit (assuming the buyer of the option acts rationally)?

a) -$0.02

b) $0.02

c) $0.01

d) -$0.01