Elton Gets on an Elevator in an Office Building,along with Three

Elton gets on an elevator in an office building,along with three others.All passengers face front,except a woman,who continues to stand facing the back of the elevator all the way to the 21st floor.The most likely reason for Elton's discomfort for this behavior:

A) he assumes it is some sort of feminist rebelliousness.
B) he believes the woman may have a vision or other problem.
C) the behavior is a contradiction of Elton's elevator-riding schema.
D) he thinks this is an attempt by the woman to gain his attention.
E) he thinks it is an attempt by the woman to change the elevator-riding "tradition" in the building.