If Actus Non Facit Reum Nisi Mens Sit Rea Is

Multiple Choice

If Actus non facit reum nisi mens sit rea is a cardinal principal of criminal law, then which one of the following statements correctly reflects the above principle?

A) Mens rea is an essential element of a crime and there cannot be a crime with out mens rea.
B) Criminal liability under Indian Law always implies mens rea
C) To constitute a crime there must be actus reus and mens rea
D) Actus reus is not always necessary to constitute a crime.