Roy Has Missed 10 Days of Work This Year as a Result

Roy has missed 10 days of work this year as a result of a reoccurring viral illness. Although he has never missed more than two days of work in a row, his productivity has definitely been affected. Roy's employer has done the math and figured out that his absence from work has prejudiced its business interests. Which of the following is true?

A) Roy's absenteeism is just cause so long as the employer documents the number of days missed and the lost productivity as a result.
B) In order for absenteeism to be a just cause for dismissal, the employer must demonstrate that the employee was dishonest about his or her absence.
C) The employer has just cause for dismissing Roy.
D) Roy can be dismissed without notice on the basis of his repeated absenteeism.
E) none of the above