What Was One Purpose of Rural Health Clinic (RHC)Public Law

What was one purpose of Rural Health Clinic (RHC) Public Law 95-210?

A) To define rural areas as underserved and therefore eligible for many tax reductions
B) To encourage utilization of advanced practice nurses by providing reimbursement for their services under Medicare and Medicaid
C) To fund structures (building,equipment,supplies) for rural health care providers
D) To pay for physicians to serve in rural underserved areas