Read the following context and choose the best option to answer the question.
Context: Today was my mother 's birthday . She 's a big fan of horse racing , so we went to Yonkers Raceway for the Sire Stakes . A good time was had by all . I am not big into horse racing , but it can be fun when you do $ 2 bets based on the funniest horse names . Twenty dollars can keep you entertained for the whole evening , so it 's not so bad . I made a few bets , then decided to flip through the racing form to look at all the horses for the rest of the day .
Question: What may be the reason why they did n't gamble much money ?
Options: 
A. None of the above choices .
B. They do n't like horses .
C. They have had a bad experience .
D. They do n't like to gamble .


D