Step 1: Understanding Mens Rea.
Mens Rea means "guilty mind," a mental state indicating intention or knowledge of wrongdoing.
Step 2: IPC terminology.
Indian Penal Code defines certain terms expressing mental element:
- "Voluntarily" (Sec. 39 IPC)
- "Dishonestly" (Sec. 24 IPC)
- "Fraudulently" (Sec. 25 IPC)
- "Reason to believe" (Sec. 26 IPC)
Step 3: Conclusion.
Thus, the correct group is (A).