Which of the following statements) is/are correct about a Medicare Savings Account (MSA) Plans?1. MSAs may have either a partial network, full network, or no network of providers.II. MSA plans cover Part A and Part B benefits but not Part D prescription drug benefits.III. An individual who is enrolled in an MSA plan is responsible for a minimal deductible of $500 indexed for inflation.IV. Non-network providers must accept the same amount that Original Medicare would pay them as payment in full. a. I and II only.b. 1, Il, and IV onlyc. Il and Ill onlyd. 1, 11, and Ill onlya