Sirbaz Khan is the first Pakistani who has now climbed _______ of the world's 14 highest peaks without using supplemental oxygen.

Correct answer: C. 11

  • A. 5
  • B. 10
  • C. 11
  • D. 13

Explanation

Sirbaz Khan became the first Pakistani to climb 11 of the 14 eight-thousanders without supplemental oxygen. His total number of summits and his oxygen-free total were therefore different figures.

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