With reference to the role of essential elements in photosynthesis and transpiration, consider the following statements: 1. Manganese (Mn) and Chlorine (Cl) are essential for the photolysis of water in Photosystem II. 2. Magnesium (Mg) forms the central atom of the porphyrin ring in chlorophyll. 3. Potassium (K+) acts as an osmoregulator in guard cells to control stomatal movement. Which of the statements given above are correct?

Options:

• A: 1 and 2 only
• B: 2 and 3 only
• C: 1 and 3 only
• D: 1, 2 and 3

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