The correct answer is option 3, Mistral. Mistral is a cold local wind that blows in southern France, particularly in the Rhône Valley.

Option 1, Santa Ana, is not a cold wind but a hot and dry wind that blows in southern California and northern Baja California.

Option 2, Chinook, is also not a cold wind but a warm and dry wind that occurs on the eastern slopes of the Rocky Mountains in North America.

Option 4, Loo, is not a cold wind either. It is a hot and dry wind that blows across the plains of northwestern India and Pakistan.

Therefore, the only option that represents a cold local wind is option 3, Mistral.