A person who intentionally discharges a firearm in a reckless manner commits the following:
 1. A class “C” felony if a serious injury occurs.
 2. A class “D” felony if a bodily injury which is not a serious injury occurs.
 3. An aggravated misdemeanor if property damage occurs without a serious injury or bodily injury occurring.
 4. A simple misdemeanor if no injury to a person or damage to property occurs.