Which of the features labeled on this figure is an esker? 
Definitions:
Health-Care Coverage
refers to the extent to which health services and financial protection are provided to an individual by insurance or public health systems.
Medical Science
Medical science is the branch of science dedicated to the study, diagnosis, treatment, and prevention of diseases and conditions, positively impacting health and well-being.
Medical Care
The services provided by professionals to diagnose, treat, and prevent diseases and injuries.
Two-Tier
A system or structure characterized by two separate levels of operation, service, or classes, often with distinct access or privileges.
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