Answer:
✔️considered sacred
✔️formed a natural border
✔️protected them from others.
(the options are not complete).
Step-by-step explanation:
From the excerpt, it is seen that the Himalaya mountain is considered among the Chinese as sacred in their religion. It is known to create an impassable border. The mountain as an impassable barrier stands as protection for the people against attacks.
The Himalaya are mountains that are inhabited by over 50 million people. It spreads across five countries which are China, Nepal, Bhutan, India and Pakistan.