The minerals involved in the photolysis of water are
(i) Manganese (ii) Calcium
(iii) Magnesium (iv) Chloride

Options

A. (i) and (ii) only
B. (i), (ii) and (iv) only
C. (i), (ii) and (iii) only
D. (i) and (iv) only

Explanation

To determine the minerals involved in the photolysis of water, we need to understand the process of photosynthesis and the specific role of each mineral mentioned in the question.

### Step-by-Step Solution:

1. **Understanding Photolysis of Water**:
- Photolysis of water is the process by which water molecules are split into oxygen, protons, and electrons using light energy during photosynthesis. This occurs in the thylakoid membranes of chloroplasts.

2. **Identifying Key Minerals**:
- The minerals that play a role in the photolysis of water are primarily involved in the photosystem II complex. The key minerals involved are:
- **Manganese (Mn)**: It is essential for the oxygen-evolving complex of photosystem II, where it helps in the splitting of water molecules.
- **Calcium (Ca)**: It is involved in stabilizing the structure of the oxygen-evolving complex and plays a role in the electron transport chain.
- **Magnesium (Mg)**: While it is crucial for chlorophyll synthesis and function, it does not directly participate in the photolysis of water.
- **Chloride (Cl)**: It is also involved in the stabilization of the oxygen-evolving complex, but its role is more indirect.

3. **Conclusion**:
- The minerals directly involved in the photolysis of water are **Manganese (Mn)** and **Calcium (Ca)**. While Chloride (Cl) has a supportive role, Magnesium (Mg) is not directly involved in the photolysis process.

### Final Answer:
The minerals involved in the photolysis of water are:
- (i) Manganese
- (ii) Calcium
- (iv) Chloride (indirectly)