Final answer:
The comprehensive management tool for a CTRS seeking to understand the functions of a therapeutic recreation department is found in the written plan of operation, which includes all necessary guidelines and procedures.
Step-by-step explanation:
A Certified Therapeutic Recreation Specialist (CTRS) would find the comprehensive management tool that outlines all aspects and functions of a therapeutic recreation department in C. Written plan of operation. The written plan of operation serves as a foundational document that provides detailed information about how the department is structured and operates on a daily basis. This document includes mission statements, policies, procedures, and guidelines for staff to follow. It is essential in ensuring that all operations meet the required standards for providing therapeutic recreation services.