Concept:A dry, dusty wind that moves out of the Sahara Desert toward the southern part of West Africa.
Explanation:The Harmattan is a dry, north-easterly trade wind. It blows from the Sahara Desert towards southern West Africa, especially during the dry season.
This wind brings cold, dry, and dusty air with very low humidity.
It is not the fohn, sirroco, or mistral, because those winds are associated with other regions of the world.
In the given option, the word "harnattan" is a common misspelling of Harmattan.
Therefore, option D is the correct answer despite the spelling error.
Answer:D. harnattan