Which one of the following statements about viruses is correct

Options :
  1. they have their own metabolic system
  2. they contain either DNA or RNA
  3. they are facultative parasites
  4. they are readily killed by antibiotics
Answer and Explanation :-

Answer: Option 2

Explanation:

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These woods are lovely, dark and deep,But I have promises to keep,And miles to go before I sleep,And miles to go before I sleep.
-Robert Frost Stopping By Woods on a Snowy Evening