Suppose a financial manager buys call options on 50,000 barrels of oil with an exercise price of $83 per barrel. She simultaneously sells a put option on 50,000 barrels of oil with the same exercise price of $83 per barrel. Consider her gains and losses of oil prices are $75, $72, $80, $83, and $85. What if oil futures prices are $88.24 per barrel at expiration?