(a) Unless a different classification is expressly stated, a person who is convicted of a conspiracy to commit a felony is guilty of a felony that is one class lower than the felony he or she conspired to commit, except that a conspiracy to commit a Class A or Class B1 felony is a Class B2 felony, a conspiracy to commit a Class B2 felony is a Class C felony, and a conspiracy to commit a Class I felony is a Class 1 misdemeanor.
(b) Unless a different classification is expressly stated, a person who is convicted of a conspiracy to commit a misdemeanor is guilty of a misdemeanor that is one class lower than the misdemeanor he or she conspired to commit, except that a conspiracy to commit a Class 3 misdemeanor is a Class 3 misdemeanor.