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People who have migrated from the planes...

People who have migrated from the planes to
an area adjoining Rohtang Pass about six
months back

A

Suffer from altitude sichness with symptoms like nausea, fatigue, etc.

B

have the usual RBC count but their haemoglobic has very high binding affinity to `O_(2)`

C

have more RBCs and their haemoglobin has a lower binding affinity to `O_(2)`

D

are not physically fit to play games like football.

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