Which data structure allows insertion at one end and deletion at the other end?

Which data structure allows insertion at one end and deletion at the other end?

  1. a) Stack
  2. b) Tree
  3. c) Queue
  4. d) Graph

From the BCS Technical Cadre (CSE) October 2025 – 49th BCS Written (Special) (BPSC) exam, question 66 of 123.

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