Read the following context and choose the best option to answer the question.
Context: Thus , instead of graduating in the winter , I am double majoring and spending a few more years in school . Ca n't complain , really , but this means I ca n't afford to move out . SO .
Question: why ca n't the person afford to move out ?
Options: 
- he decided to do a double major
 - They spend too much on food
 - They have a drug habit
 - They are paying child maintanance


he decided to do a double major