Assume a team is analyzing a typical patient visit at a clinic. The process consists of patient check-in, nurse preliminary , physician consultation, and discharge. The slack times for these steps are 5 minutes, 15 minutes, 20 minutes, and 10 minutes. The total time required for the process is 80 minutes. What is the process cycle efficiency for this process?

A. 24.5%

B. 37.5%

C. 62.5%

D. 75.5%