Plant which was used by Hugo de Vries in his experiment

Options :
  1. Pea
  2. Gurhal
  3. Oenothera
  4. papaya
Answer and Explanation :-

Answer: Option 3

Explanation:

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Someone once told her there's a formula for how long it takes to get over someone, that it's half as long as the time you've been together.But I couldn't see it again, and it occurred to me that the voracious ambition of humans is never sated by dreams coming true, because there is always the thought that everything might be done better and again.
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