Which of the following statements is true about the means (income) testing for Medicare? a. there are strictly enforced income limits that are based on federal standards but may vary slightly by state. b. limits apply to the amount of counted assets individuals can have, but they are routinely overlooked. c. means testing is intended to ensure that only the truly needy get access to Medicare. d. there is an asset test and an income test. e. Medicare is not income tested