In the Himalayas

In the Himalayas,

A) low altitude dwellers have smaller lung size than high-altitude dwellers.
B) low altitude dwellers have larger lung size than high-altitude dwellers.
C) low altitude dwellers have the same lung size than high-altitude dwellers.
D) low altitude dwellers have reduced lung capacity than high-altitude dwellers.
E) low altitude dwellers have adapted better for surviving than high-altitude dwellers.