Which tool allows the creation of a solid by sweeping a 2D profile along a path?

The tool that allows for the creation of a solid by sweeping a 2D profile along a specified path is indeed Sweep. This modeling technique combines a 2D shape, often referred to as a profile or cross-section, with a defined trajectory or path to generate a three-dimensional object.

When using the Sweep tool, the 2D profile retains its shape as it moves along the path, allowing for the creation of complex geometries, such as pipes, rails, or other elongated forms that maintain a consistent cross-section throughout their length. This makes it particularly useful for applications where the object must follow a specific trajectory, ensuring that the resultant solid conforms precisely to that path.

The other tools mentioned serve different purposes. Loft is used to create a solid by connecting multiple profiles at different locations, which is useful for creating more complex shapes. Extrude creates a solid by extending a profile straight out in a perpendicular direction. Revolve generates a solid by rotating a profile around an axis, effectively creating revolute shapes like cylinders or domes. Each tool has its specific use case, but for the purpose of following a path with a profile, Sweep is the ideal choice.