A television network uses

Options :
  1. microwaves
  2. ultrahigh frequency radio waves
  3. gamma rays
  4. both 1 and 2
Answer and Explanation :-

Answer: Option 2

Explanation:

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And by and by Christopher Robin came to the end of things, and he was silent, and he sat there, looking out over the world, just wishing it wouldn't stop.
-A.A. Milne The House at Pooh Corner