Which one of the following is correct statement

Options

A. Antheridiophores and archegoniophores are present in pteridophytes
B. Origin of seed habit can be traced in pteridophytes
C. Pteridophyte gametophyte has a protonemal and leafy stage
D. In gymnosperms , female gametophyte is freeliving

Answer

To solve the question "Which one of the following is correct statement?" regarding the Plant Kingdom, we will analyze each statement provided in the options.

### Step-by-Step Solution:

1. **Analyze the First Statement**:
- The statement claims that "and 3do and 3do4 and r2o4 are present in pteridophytes."
- **Evaluation**: Pteridophytes are vascular plants, and the mentioned structures (archegoniophore and antheridiophore) are actually found in bryophytes, not in pteridophytes.
- **Conclusion**: This statement is incorrect.

2. **Analyze the Second Statement**:
- The statement claims that "the origin of seed habit can be traced in pteridophytes."
- **Evaluation**: It is known that the seed habit indeed has its origins in pteridophytes, as they are the first group of vascular plants that show some characteristics leading to seed formation.
- **Conclusion**: This statement is correct.

3. **Analyze the Third Statement**:
- The statement claims that "pteridophyte gametophyte has a proto-nemal and leafy stage."
- **Evaluation**: The gametophyte of pteridophytes does not have a proto-nemal stage; instead, it typically has a prothallus stage, which is different from the stages mentioned.
- **Conclusion**: This statement is incorrect.

4. **Analyze the Fourth Statement**:
- The statement claims that "in gymnosperm female gametophyte is free-living."
- **Evaluation**: In gymnosperms, the female gametophyte (megasporangium) is not free-living; it is retained within the ovule.
- **Conclusion**: This statement is incorrect.

5. **Final Conclusion**:
- The only correct statement among the options is the second one: "the origin of seed habit can be traced in pteridophytes."

### Final Answer:
The correct statement is: "The origin of seed habit can be traced in pteridophytes."

---