Read the following context and choose the best option to answer the question.
Context: I have the money for it but as stated earlier . The gas . This is going to make me give up ice cream . I should be thankful but I want ice cream , I ' m on my period , and I want cheap gas ! ! ! ! !
Question: What may be the reason why they need to give up ice cream to get gas ?
Options: 
A. They spend too much money on ice cream .
B. They can afford both but they 're on a diet .
C. They have an eating problem .
D. They ca n't afford both .


D