Both the "American" and "European" versions of roulette have 18 black pockets and 18 red pockets. Instead of having 2 green pockets, however, the European roulette wheel has 1 green pocket. If a gambler bets on red, what is the probability that he or she wins on an American roulette wheel? Are those odds better or worse than on a European roulette wheel? A: 9/19; better chance of winning on a American wheel B: 9/19; better chance of winning on a European wheel C: 18/37; better chance of winning on a American wheel D: 18/37; better chance of winning on a European wheel