At a workplace where there is work every day, a flexible work system has been implemented. The owner of this workplace asked some employees to come to the workplace every other day, while others to come every third day. After switching to this system, the number of employees coming to the workplace on the first four days was 22, 19, 28, and 26 respectively.
Accordingly, how many employees came to this workplace on the fifth day after switching to this system?
A) 12
B) 15
C) 18
D) 21
E) 24