Step 1: Recall Mahavir’s life.
- Born in 599 BCE.
- Attained enlightenment at age 42.
- Delivered first sermon after enlightenment.
- Died in 527 BCE.
Step 2: Arrange in order.
First → Birth (A).
Second → Enlightenment (C).
Third → First sermon (B).
Fourth → Death (D).
Step 3: Verify with options.
This matches (C) A, C, B, D.
Step 4: Conclusion.
Correct answer is (C) A, C, B, D.