Select the correct option based on the given diagram.

  • A
    $P$ - Long-day plant,$Q$ - Short-day plant,$R$ - Day-neutral plant
  • B
    $P$ - Day-neutral plant,$Q$ - Short-day plant,$R$ - Long-day plant
  • C
    $P$ - Short-day plant,$Q$ - Day-neutral plant,$R$ - Long-day plant
  • D
    $P$ - Long-day plant,$Q$ - Day-neutral plant,$R$ - Short-day plant

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