Final Answer:
The prosecutor proves mens rea
a) Through evidence of intention or knowledge.
Step-by-step explanation:
The correct option is (a) Through evidence of intention or knowledge. Mens rea refers to the mental state or intention of the defendant at the time the crime was committed. Prosecutors establish mens rea by presenting evidence that demonstrates the defendant's intention or knowledge of committing the unlawful act. This evidence may include the defendant's statements, actions, or other circumstances that indicate a culpable state of mind.
While witness testimony and other factors may contribute to building a case, demonstrating the defendant's intention or knowledge is crucial in proving mens rea in a criminal prosecution. It involves establishing that the accused had the requisite mental state for the specific offense.