According to Robert Sternberg,which of the Following Couples Is Probably

According to Robert Sternberg,which of the following couples is probably going to have a very difficult time sustaining their relationship?

A) Marcia and Lewis,who have a high level of commitment and intimacy in their relationship,but a reduction in the passion they feel for each other
B) Jay and Janet,whose "triangles" do not seem to match each other very well
C) Cathy and Ussein,who have been together for quite a long time and do almost everything together
D) Gary and Suzy,who constantly assess and reassess how they see their own roles in their relationship