You Have an Appointment for an Interview at 3:00, but There

You have an appointment for an interview at 3:00, but there is an unexpected ice storm and you cannot safely arrive on time. You should

A) call before 3:00 and ask if you can reschedule.
B) call the next day to reschedule.
C) not follow up because they probably think you did not want to make the effort.
D) go in person as soon as possible to show you are interested in the job.