847 - Math - Problem Solving

Question: A man bets on number 16 on a roulette wheel 14 times and losses each time. On the 15th span he does a quick calculation and finds out that the number 12 had appeared twice in the 14 spans and is therefore, unable to decide whether to bet on 16 or 12 in the 15th span. Which will give him the best chance and what are the odds of winning on the bet that he takes? (Roulette has numbers 1 to 36)

1. 16; 22 : 14
2. 12; 72 : 1
3. 12; 7 : 1
4. Either; 35 : 1