Read the following four statement A,B,C and D and select the right option having both correct statements.
statements
(A) Z scheme of light reaction takes place in presence of PS I only .
(B) Only PS I is functional in cyclic photosporylation
(C) Cyclic photophosphorylation results into synthesis of ATP and `NADPH_(2)`
(D) Stroma lamellae lack PSII as well as NADP
(a) A and B
(b) B and C
(c) C and D
(d) B and D

Options

A. A and B
B. B and C
C. C and D
D. B and D

Answer

To solve the question, we need to evaluate the correctness of each statement (A, B, C, and D) regarding photosynthesis and then select the option that contains both correct statements.

### Step-by-Step Solution:

1. **Evaluate Statement A**:
- Statement A claims that the Z scheme of light reaction takes place in the presence of PS I only.
- **Analysis**: The Z scheme involves both Photosystem I (PS I) and Photosystem II (PS II). Therefore, this statement is **incorrect**.

2. **Evaluate Statement B**:
- Statement B states that only PS I is functional in cyclic photophosphorylation.
- **Analysis**: This statement is **correct** because cyclic photophosphorylation involves only Photosystem I, and it does not involve Photosystem II.

3. **Evaluate Statement C**:
- Statement C claims that cyclic photophosphorylation results in the synthesis of ATP and NADPH2.
- **Analysis**: This statement is **incorrect** because cyclic photophosphorylation only produces ATP and does not produce NADPH2.

4. **Evaluate Statement D**:
- Statement D states that stroma lamellae lack PS II as well as NADP.
- **Analysis**: This statement is **correct** because the stroma lamellae contain only PS I and do not contain PS II or NADP.

### Conclusion:
- The correct statements are B and D. Therefore, the correct option is **(d) B and D**.