Which of the following structures contribute in structural defence of plants against pathogens

Options :
  1. prickles
  2. phytoalexins
  3. tylosis
  4. hairs
Answer and Explanation :-

Answer: Option 3


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A live body and a dead body contain the same number of particles. Structurally, there's no discernible difference. Life and death are unquantifiable abstracts. Why should I be concerned?
-Alan Moore Watchmen