A few months ago you bought 100 shares of Amazon at US$800 per share and paid a US $10 brokerage commission. The exchange rate at the time was US$1 = C$ 1.10. Today you sold the shares at a price of US$750 each and paid a brokerage commission of US$20. Today the exchange rate is US$1 = C$ 1.25. What is your capital gain (or loss) on the transaction? a) - $5,030 b) - $6,287 c) $5,714 O d) $5,786