Statements: 1. All coins are crows
2. Some crows are pens
Conclusions: 1. No pen is coin
2. Some coins are pens

Options

A. only conclusion 1 follows,
B. only conclusion 2 follows,
C. either conclusion 1 or 2 follows,
D. neither conclusion 1 nor 2 follows,

Answer

To solve the problem, we need to analyze the given statements and their conclusions using logical reasoning and Venn diagrams.

### Step-by-Step Solution:

1. **Understanding the Statements**:
- **Statement 1**: "All coins are crows."
This means that the set of coins is completely contained within the set of crows.
- **Statement 2**: "Some crows are pens."
This indicates that there is an overlap between the set of crows and the set of pens.

2. **Visualizing with Venn Diagrams**:
- Draw a Venn diagram with three circles: one for coins (C), one for crows (R), and one for pens (P).
- Since all coins are crows, the circle for coins is entirely within the circle for crows.
- For the second statement, draw the circle for pens such that it overlaps with the circle for crows.

3. **Analyzing the Conclusions**:
- **Conclusion 1**: "No pen is a coin."
Since there is no direct relationship established between coins and pens in the statements, this conclusion could be true. However, we cannot definitively conclude that it is true based on the information provided.
- **Conclusion 2**: "Some coins are pens."
This conclusion cannot be true because all coins are crows, and while some crows are pens, it does not imply that any coins are pens.

4. **Determining the Validity of Conclusions**:
- From the Venn diagram, we see that while there is a possibility that no pen is a coin, we cannot confirm that some coins are pens. Therefore:
- Conclusion 1 could be true.
- Conclusion 2 is false.

5. **Final Decision**:
- Since we have established that Conclusion 1 can be true while Conclusion 2 is false, the answer is that only Conclusion 1 follows from the statements.

### Final Answer:
- **Conclusion 1 follows, but Conclusion 2 does not follow.**