Dale and Patty Johnson Have Been Married for Fifteen Years

Dale and Patty Johnson have been married for fifteen years. Dale works in a meat packing plant and Patty works part time as a clerk in a fast- food restaurant. Who is most likely to be the family financial officer?

A) Dale
B) Patty
C) They are both equally likely.
D) If Patty is working, then she is, but when she is not, then Dale is.
E) If Dale is working, then he is, but when he is not, Patty is.