Final answer:
The Curvature Spacing option in the extrude command produces denser T-spline geometry along areas of high curvature, while the Uniform option spaces the T-spline vertices equally across the geometry.
Step-by-step explanation:
The statement is true. In Autodesk Fusion 360, the Curvature Spacing option in the extrude command allows you to control how T-spline vertices are distributed along areas of the geometry with different curvatures.
When using the Curvature Spacing option, the software automatically adds more vertices in areas with high curvature, resulting in denser T-spline geometry. On the other hand, when using the Uniform option, the software spaces the T-spline vertices equally across the entire geometry.