Answer:
The correct answer is D. The countries that are mainly made up of deserts and have a dry arid climate are Saudi Arabia, Oman, and the United Arab Emirates.
Step-by-step explanation:
The three mentioned countries are located in the Middle East, specifically in the Arabian Peninsula. As is well known, this region is characterized by its dry environment, its huge deserts and its null presence of inland water.
Most of the peninsula has desert climate. In the north, the annual rainfall is 200–100 mm and in the south, even less. The mountainous regions in the south can get up to 500–1000 mm annually. In the hinterland, the sky is almost always cloudless and because of the radiation there are therefore large temperature variations between day and night and between summer and winter.