The correct answer is Actual intention.
Mens rea is a fundamental concept in criminal law, referring to the 'guilty mind' or the mental state of the accused at the time of committing a crime. It signifies a deliberate purpose or knowledge that an act is wrong. While mens rea encompasses various mental states like knowledge, recklessness, and negligence, 'actual intention' is the most direct and primary form of mens rea, indicating a conscious desire to bring about a particular result.
Option A, 'Constructive intention,' is not a standard legal term for mens rea; it might imply an intention imputed by law rather than a genuinely held one.
Option C, 'Common intention,' is a specific legal concept related to joint liability, where multiple individuals share a pre-arranged plan to commit an offense, but it is not the general meaning of mens rea itself.
Option D is false as 'Actual intention' accurately defines a core aspect of mens rea.