In a Right-Handed Double Helix, If One Looks Down the Central

In a right-handed double helix, if one looks down the central axis of the molecule, _________.

A) each strand follows a counterclockwise path as it moves away from the observer
B) each strand follows a clockwise path as it moves away from the observer
C) each strand follows a rectangular path as it moves toward the observer
D) each strand follows a clockwise path as it moves toward the observer
E) one strand follows a clockwise path as it moves away from the observer, the other follows a clockwise path as it moves toward the observe