Which of these sentences is written correctly?

A.
They include Mount everest, which, at more than 29,000 ft. tall, is the world's highest peak.
B.
Asia's Himalayas are the highest mountain range in the world.
C.
The Himalayas are located between sagarmatha Zone in Nepal and Tibet in China.
D.
The Nepali people call mount Everest the "Head of The Sky."