Which answer choice shows the correct capitalization for the proper noun in the following sentence? Although the Sahara Desert is generally flat, the snow-capped mount Tahat rises above the swirling sands of the desert.

A)Although the sahara desert is generally flat, the snow-capped Mount Tahat rises above the swirling sands of the desert.

B)Although the Sahara Desert is generally flat, the snow-capped mount Tahat rises above the swirling sands of the Desert.

C)Although the Sahara Desert is generally flat, the snow-capped Mount Tahat rises above the swirling sands of the desert.

D)Although the Sahara desert is generally flat, the snow-capped mount Tahat rises above the swirling sands of the desert.