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      Question

      Which of the following plant hormone, plays a primary

      role in allowing K+ to pass rapidly out of guard cells, causing the stomata to close in response to drought?
      A Cytokinin Correct Answer Incorrect Answer
      B Abscisic Acid Correct Answer Incorrect Answer
      C Ethylene Correct Answer Incorrect Answer
      D Auxin Correct Answer Incorrect Answer

      Solution

      The correct answer is B

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