Statements:

• All students are intelligent.
• No intelligent person is lazy.
• Some lazy people are poor.

Conclusions:

1. No student is lazy.
2. Some poor people are not intelligent.
3. All poor people are lazy.

Analysis:

• Conclusion 1 follows: Since all students are intelligent and no intelligent person is lazy, no student can be lazy.
• Conclusion 2 follows: Some lazy people are poor and lazy people are not intelligent, so some poor people are not intelligent.
• Conclusion 3 does not follow: "Some lazy people are poor" does not imply that all poor people are lazy.

Therefore, only conclusions 1 and 2 follow.

Answer: (A) Only conclusions 1 and 2 follow