The contract size for platinum futures is 50 troy ounces. Suppose you need 500 troy ounces of platinum and the current futures price is $1,265 per ounce. How many contracts do you need to purchase? How much will you pay for your platinum? What is your dollar profit if platinum sells for $1,290 a troy ounce when the futures contract expires? What if the price is $1,210 at expiration?a. Contracts to purchase b. Purchase price c. Dollar profit at $1,290 d. Dollar profit at $1,210