To find the temperature on Tuesday, you need to subtract 13°C from Monday's temperature of -4°C.
-4°C - 13°C = -17°C
So, the temperature on Tuesday is -17°C.
However, that option is not provided in your responses. If you intended to ask if the temperature increases or decreases rather than give a specific answer, it does decrease significantly. Please check if there might be a mistake in the options provided.