Drawing on Armitage and Conner's (2000)evidence That Ambivalence Affects the Magnitude

Drawing on Armitage and Conner's (2000) evidence that ambivalence affects the magnitude of relations between attitudes and behavior,which of the following statements is more likely to be correct?

A) Ambivalent attitudes serve a social adjustive function,
B) Ambivalent attitudes serve a utilitarian function
C) Ambivalent attitudes are less likely to serve a value-expressive function
D) Ambivalent attitudes are less likely to serve a knowledge function