Rearrange the given parts in the correct sequence to form a meaningful sentence:-

(A) hot desert in the entire world
(B) covering approximately 9.2 million square kilometers
(C) the Sahara Desert is the largest
(D) across northern Africa's vast arid regions

Choose the correct answer from the options given below:

(D), (A), (C), (B)

The correct answer is Option (2) → (D), (A), (C), (B)

(D) across northern Africa's vast arid regions

(A) hot desert in the entire world

(C) the Sahara Desert is the largest

(B) covering approximately 9.2 million square kilometers