Final answer:
According to MPC 1.13(9), an element of an offense includes actus reus, mens rea, culpability, and circumstances.
Step-by-step explanation:
According to the MPC (Model Penal Code) 1.13(9), an element of an offense refers to the essential components that must be present for an act to be deemed illegal. These elements include actus reus (the physical act), mens rea (the mental state or intent of the offender), culpability (the level of blameworthiness), and circumstances (such as time, place, and manner of the offense).