Which UTC is designated for managing nonappropriated fund instrumentality (NAFI) for a population of 1,100?

The designated UTC for managing nonappropriated fund instrumentality (NAFI) for a population of 1,100 is the RFSRL. This UTC is specifically structured to optimize the management and allocation of resources associated with nonappropriated funds, which are essential for supporting morale, welfare, and recreational activities within a military setting.

In the context of a population size like 1,100, the RFSRL encompasses the capabilities required to effectively oversee NAFI operations, ensuring that the funds are utilized efficiently and in line with the community's needs. This includes policies, procedures, and accountability measures necessary for managing these funds, making it the appropriate choice.

Other options, while they serve important roles, do not focus specifically on NAFI management. The Learning Resource Center (LRC) primarily focuses on educational resources, the base support unit provides a wide array of services to support the overall base infrastructure, and the mission support team is typically oriented towards logistical and operational support rather than direct management of NAFI. Therefore, RFSRL stands out as the most fitting option for the specific task of NAFI management in this context.