Walgreen Company (NYSE: WAG) is currently trading at $48.25 on the NYSE. Walgreen Company is also listed on NASDAQ and assume it is currently trading on NASDAQ at $48.50. Does an arbitrage opportunity exist and if so how would you exploit it? How much would you make on a block trade of 100 shares? a. Yes, buy on NYSE and sell on NASDAQ, make $25. b. Yes, buy on NASDAQ and sell on NYSE, make $25. c. Yes, buy on NASDAQ and sell on NYSE, make $250. d. Yes, buy on NYSE and sell on NASDAQ, make $250. e. No, no arbitrage opportunity exists.