I felt I really needed to see my therapist as I had n't seen him LAST week- and was unhappy that I was having problems sleeping AGAIN.So I was peeved that he canceled on me . This is not the first time he 's canceled on me . Granted we ' ve penciled in Saturday ... but it irks me that I had planned to see him and then he got sick .
According to the above context, choose the best option to answer the following question.
Question: Why may the therapist have cancelled the previous time ?
Options:
- He was away on vacation .
 - He had a personal matter to attend to .
 - He was tired of hearing people complain .
 - He had an appointment with another patient .


He had a personal matter to attend to .