Job candidates are leaving an office every 50 minutes. Each candidate goes through three activities during the office visit: verification, written test, and interview. Verification takes 1 minute, the written test takes 40 minutes, and the interview takes 10 minutes. Assume there is only one resource dedicated to each activity. What is the process capacity in candidates per hour?
(a) 2 candidates per hour
(b) 2.5 candidates per hour
(c) 1.5 candidates per hour
(d) 1.2 candidates per hour