There are three exams. these exams are administered through casa. students schedule the exact time and date for taking their exam (within a 3 - 5 day exam window) through the casa website. which statement best represents the course policy regarding exam attendance?

a. students schedule a specific time and date with casa to take their exam. but casa doesn't really care when you show up as long as you arrive sometime within your testing window.
b. students must attend the exam at the date and time that they schedule with casa. but if a student is unable to make their appointment for any reason, they can just take the exam in the instructor's office.
c. students must attend the exam at the date and time that they schedule with casa. students should arrive early for the exam because casa will not allow an exam when students are late. business related absences are not excused. routine illnesses are not excused. traffic, transportation, and weather related absences are not excused.
d. students must attend the exam at the date and time that they schedule with casa. but if a student is not feeling 100% healthy, casa can easily reschedule - just tell them that you did not show up because you were sick.