We took some time out the other day and took a bus ride for a mooch around a nearby town . The route is fairly convoluted and takes us through the countryside and various villages . The journey itself was somewhat stressful as the driver seemed permanently wound up , repeatedly annoyed at meeting oncoming traffic as he travelled at excessive speed along what is mostly narrow single track country lanes .

Options:
+ He might not get along with his colleagues.
+ He might have had a schedule to adhere to.
+ He might be keen to get finished and get home.
+ He might have had a hangover.
Answer the following question: Why might the driver have been annoyed ?
He might have had a schedule to adhere to