What is the primary responsibility of the Defense Health Agency (DHA) in relation to TRICARE?

The primary responsibility of the Defense Health Agency (DHA) in relation to TRICARE is to oversee the operations of the TRICARE program and manage healthcare services for military members. This encompasses a wide range of duties, including providing guidance, setting policies, and ensuring that the TRICARE program meets the healthcare needs of eligible beneficiaries. The DHA coordinates various programs, implements strategies to enhance healthcare delivery, and manages the relationship between service members and the healthcare system to ensure that they receive appropriate care.

However, while the agency plays a crucial role in managing the overall framework of TRICARE, it does not authorize all healthcare services personally, conduct enrollments, or provide direct medical care to service members. Instead, it focuses on system-wide management and policy development, making option B the most accurate depiction of the DHA's primary responsibility in relation to TRICARE.