Suppose that the spot price of oil is $100 per barrel and the cost of storing a barrel of oil for one year is $5 payable at the end of the year. The risk-free interest rate is 4% per annum, continuously compounded. The price for the one-year futures contract is $110. Is there an arbitrage opportunity? Select one: a. Yes there is. I should long the futures contract and short oil in the spot market b. There is no arbitrage opportunity c. Yes there is. I should short the futures contract and long oil in the spot market d. Yes there is. I should long the future contract and long oil in the spot market