Statements: 1. All planets are moons
2. All moons are stars
Conclusions: 1. All moons are planets
2. All planets are stars

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 logically, we will analyze the statements and conclusions step by step.

### Step 1: Analyze the Statements
1. **Statement 1**: All planets are moons.
- This means that every planet falls under the category of moons. We can visualize this as a circle representing planets that is entirely contained within a larger circle representing moons.

2. **Statement 2**: All moons are stars.
- This indicates that every moon is also a star. We can visualize this as the circle representing moons being entirely contained within an even larger circle representing stars.

### Step 2: Visual Representation
- Let's represent this visually:
- Draw a large circle for stars.
- Inside this circle, draw another circle for moons.
- Inside the moons circle, draw a smaller circle for planets.

### Step 3: Analyze the Conclusions
1. **Conclusion 1**: All moons are planets.
- This conclusion is incorrect because while all planets are moons, not all moons are planets. There are moons that are not planets.

2. **Conclusion 2**: All planets are stars.
- This conclusion is correct. Since all planets are moons (from Statement 1) and all moons are stars (from Statement 2), it follows that all planets must also be stars.

### Final Result
- Conclusion 1 is **false**.
- Conclusion 2 is **true**.