Suppose that there is a stock whose current price is $50.$ An investor decides to sell two call contracts at the exercise price of $50.$ The current market premium of one call contract with this exercise price of $50$ is $$2$ per share. The investor also buys a call contract with an exercise price of $52$ by paying a premium of $0\mathrm{.}8$ and buys another call contract with an exercise price of $48$ by paying $2\mathrm{.}5$ per share. All these calls are written on the same stock and they all have a maturity of $1$ month. What may be the profit or loss of this investor if the price at maturity is

a$)50$ b$)60$ c$)40$ d$)52$