The ________ planes are so selected as to cut the surface of one of the solids in straight lines and that of the other in straight lines or circles.

The ________ planes are so selected as to cut the surface of one of th

1.	The ________ planes are so selected as to cut the surface of one of the solids in straight lines and that of the other in straight lines or circles.
A.	line
B.	cutting
C.	horizontal
D.	xy
Answer» B. cutting