When using the Edit Cross Section command, what option opens the internal sketch for editing?

The correct option is based on the function of the Edit Cross Section command within Siemens NX. When you select the Edit Section Curves option, it allows access to the internal sketch associated with the section. This is crucial when you need to modify the curves that define the cross-section, enabling you to adjust parameters, shapes, or profiles that are part of the design.

The Edit Section Curves option specifically highlights the section's geometry as it pertains to the cross-section being dissected or viewed, making it essential for refining design features. It effectively focuses on the internal construct of the section, giving users the ability to make precise adjustments.

The other options refer to different aspects of geometry or sketching within NX. For instance, editing sketch curves pertains to general sketch elements, while intersection curves deal with the curves that form from intersecting solid bodies, and profile curves are typically broader in context and not limited to the internal structures relevant to a cross-section. Each serves distinct purposes in modeling within Siemens NX, but it is the Edit Section Curves that directly opens the internal sketch for editing related specifically to the cross-section functionality.