An investor is analyzing the costs of two-year, European options for aluminum and zinc at a particular strike price.

For each ton of aluminum, the two-year forward price is 1400, a call option costs 700, and a put option costs 550.

For each ton of zinc, the two-year forward price is 1600 and a put option costs 550.
The annual effective risk-free interest rate is 6%. Calculate the cost of a call option per ton of zinc.

(A) 522

(B) 800

(C) 878

(D) 900

(E) 1231