Which of the Following Is an Example of a "Great

Which of the following is an example of a "great bet?"

A) You placed a bet on the underdog horse to "Win," and the horse came in first place.
B) You went to Las Vegas, put a quarter in a slot machine, and won $1,200.
C) You play a game in which you will win $100,000 if you draw any card but an ace out of a 52-card deck. If you draw an ace, however, you pay only $1.00.
D) You bought the stock of Amazon. com when it was selling for $7 a share, and it increased in value to over $40 a share in less than 6 months.