Final answer:
The statement is true. Only straight lines coincident with the edge of a 3D body can be selected using the Web command.
Step-by-step explanation:
The statement in the question is true.
The Web command allows you to select edges of a 3D body that are coincident with straight lines. This means that only straight lines that lie on the edge of a 3D body can be selected using the Web command.
For example, if you have a cube, the straight lines that make up its edges can be selected with the Web command, but any straight line that does not lie on an edge cannot be used as a selection.