Which of the following statements can be inferred from the research conducted by the University of Kansas?

A、Theparticipantswereaskedquestionsabouttheirpartners.
B、Thesimilaritybetweenpartnersmaynotchangewithintimacy
C、Thesubjectshavealmosteverythingincommon.
D、Thephenomenontakesplaceaccidentally.