If a TRICARE sponsor has other health insurance (OHI), what is the coordination of benefits?
a. TRICARE is primary for the sponsor, but not for dependents or other beneficiaries.
b. TRICARE is secondary for the sponsor and any beneficiaries.
c. TRIACRE pays for hospitalization for the sponsor and beneficiaries, but the OHI pays for physician services and drug coverage.
d. TRICARE is primary for the sponsor and all beneficiaries.