(1) A person commits the offense of aggravated abuse of an elderly or vulnerable adult who knowingly commits abuse pursuant to § 39-15-510, and: The act results in serious psychological injury or serious physical harm;
(2) A deadly weapon is used to accomplish the act or the abuse involves strangulation as defined in § 39-13-102; or
(3) The abuse results in serious bodily injury.
(4) A violation of subdivision (a)(1) is a Class C felony.
(5) A violation of subdivision (a)(2) or (a)(3) is a Class B felony.