Answer: Option C
Explanation:
The cold weather fronts usually move from the northwest to the southwest. The air which is behind the cold front is colder than the air in the front.
The cold front can can lower down the temperature by 15 degree Celsius. It can also cause snow fall during the time of winters.
The warm from makes the air warmer and more humid than it was before. The effect of the cold front and warm front can lasts upto several days.
Hence, the correct answer is option C.