(a) It is an offense for a caregiver to willfully and knowingly neglect an elderly or vulnerable adult, so as to adversely affect the person's health or welfare.
(b) The offense of neglect of an elderly adult is a Class E felony.
(c) The offense of neglect of a vulnerable adult is a Class D felony.
(d) If the neglect is a result of abandonment or confinement and no injury occurred, then the neglect by abandonment or confinement of an elderly or vulnerable adult is a Class A misdemeanor.