Which of the following communication media requires 'line-of-sight'?

Which of the following communication media requires 'line-of-sight'?

  1. a) Microwave
  2. b) Fiber optic cable
  3. c) Twisted-pair cable
  4. d) Co-axial cable

From the BPSC Assistant Programmer (CSE) September 2022 – Preliminary exam, question 29 of 90.

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