The Sahara is the world's biggest hot desert. The Sahara stretches across the northern part of Africa.
Which revision uses an appositive to combine these two sentences correctly?
A) The Sahara is the world's biggest hot desert because it stretches across northern Africa.
B) The Sahara stretches across the northern part of Africa and is the biggest hot desert.
C) The Sahara stretches across the northern part of Africa, making it the largest hot desert.
D) The Sahara, the world's biggest hot desert, stretches across the northern part of Africa.
