Altitude sickness and oxygen availability

2023 Manipur 1 question

1. 1 Breathing and Exchange of Gases Medium
   A person goes to high altitude and experiences \"Altitude Sickness\"" with symptoms like breathing difficulty and heart palpitations."
   Reason: Due to low atmospheric pressure at high altitude, the body does not get sufficient oxygen.
   A Both A and R are true and R is the correct explanation of A B Both A and R are true but R is NOT the correct explanation of A C A is true but R is false D A is false but R is true
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