If there is a red traffic light at the entrance to a tunnel, what should you do?

If there is a red traffic light at the entrance to a tunnel, what should you do?
A)Continue driving with caution.
B)Enter travelling at a maximum of 50 kilometres per hour.
C)Do not enter the tunnel.Correct
A non-flashing red light prohibits passage. While it remains lit, vehicles must not pass the traffic light or, if one exists, the nearest stop line before it.