Walgreens Company (NYSE: WAG) is currently trading at $48.75 on the NYSE. Walgreens 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 and how much would you make on a block trade of 100 shares? O A. No, no arbitrage opportunity exists. OB. Yes, buy on NASDAQ and sell on NYSE, make $25. O C. Yes, buy on NYSE and sell on NASDAQ, make $25. OD. Yes, buy on NASDAQ and sell on NYSE, make $250