The correct option is B Africa
Largest hot desert of the world is Sahara which is located in northern Africa. The size of this desert is 3500000mi^2 to 9100000km^2. It is covered by many mountains, rocky areas and also salt flats. This desert is fewer than 2 million inhabitants(such as Tuareg). It has a very harsh and scorching hot climate with very short rainfall period. Nights may be freezing cold with the temperature nearing 0 degree Celsius. The correct answer is B.