Quadruplex Was Referred to as the "Transverse" Method of Video

Quadruplex was referred to as the "transverse" method of video recording because

A) it transferred video to videotape.
B) it laid down video tracks perpendicular to the tape's direction of travel.
C) it laid down video tracks in a 45 degree slant on the tape.
D) it had four rotating heads.
E) Quad was not referred to as the "transverse" method.