Consider the following securities that have current market prices and that pay risk-free cash flows over the next two years noted below: Security Adidas Price Today ($) Cash Flow in One Year ($) Under Armour 485 430 500 Cash Flow in Two Years ($) 0 0 500 a. What is the no-arbitrage price of a security that pays cash flows of $500 in one year and $500 in two years? b. What is the no-arbitrage price of a security that pays cash flows of $500 in one year and $3,500 in two years? c. Suppose a security with cash flows of $250 in one year and $500 in two years is trading for a price of $650. What arbitrage opportunity is available? a. The no-arbitrage price is $ (Round to the nearest dollar.) b. The no-arbitrage price is $ (Round to the nearest dollar.) c. What arbitrage opportunity is available? (Select the best choice below.) A. Buy two shares of the security and sell one share each of Adidas and Under Armour. B. Sell two shares of the security and buy one share each of Adidas and Under Armour. OC. Sell two shares of the security and buy one share of Adidas and two shares of Under Armour. D. Buy two shares of the security and sell one share of Adidas and two shares of Under Armour.