1. **Is the object cylindrical in shape?**
   - **Answer:** Yes
   - **Reasoning:** All three images show an object with a consistent circular cross-section along its height, characteristic of a cylindrical shape.

2. **Does the object have an octagonal hole within it?**
   - **Answer:** Yes
   - **Reasoning:** The images clearly depict an octagonal-shaped hole at one end of the cylinder.

3. **Is the octagonal hole regularly shaped?**
   - **Answer:** Yes
   - **Reasoning:** The octagonal hole appears to have equal angles and sides that are consistent in length across all images, indicating a regular shape.

4. **Is the octagonal hole negatively extruded from the cylinder?**
   - **Answer:** Yes
   - **Reasoning:** The octagonal hole is shown as an indentation or cut-out from the surface of the cylinder, which is a characteristic of negative extrusion.