Final answer:
TRICARE Standard and Extra were combined to create TRICARE Select, a health insurance option that offers comprehensive coverage.
Step-by-step explanation:
TRICARE Standard and Extra were combined to create TRICARE Select. TRICARE Select is a health insurance option that gives beneficiaries the freedom to visit any TRICARE-authorized provider. It offers comprehensive coverage and requires beneficiaries to pay an annual deductible and cost shares for covered services.