Which one of these is not a type of creation in the Text command?

The Text command in NX provides several options for creating text, primarily aimed at 2D applications. Single Line Text allows for the creation of straightforward text entries that occupy a single line. Multi-Line Text enables users to create blocks of text that can span multiple lines, providing flexibility in how text can be utilized in designs. Curved Text is another feature that allows text to be placed along a predetermined curve, which can be useful for specific design aesthetics.

3D Text, however, is not a standard functionality of the Text command. While designers can create text in three-dimensional space using other features or commands, the Text command itself does not include a dedicated method for creating text that has depth or is fully 3D. Therefore, identifying 3D Text as not being a type of creation under the Text command is correct, as it distinguishes text creation capabilities specifically associated with this command.