All of the following are prohibited provisions in a long-term care policy, except:
a. cancels, nonrenews, or terminates the policy on the grounds of age or deterioration of the mental or physical health of the insuredb. cancelling a policy due to nonpayment of premiumc. limits or denies benefits to a policyholder who is diagnosed with any destructive brain tissue disease that will result in loss of brain functiond. provides coverage for only skilled nursing care instead of lower levels of care