Why is Catherine self-contradictionary when she faces Linton？

Why is Catherine self-contradictionary when she faces Linton？
A.because she has forgotten Heathcliff.
B.because Linton is a rich gentleman but there is a true love in her heart.
C.because she has quarreled with Linton.
D.because she does not want to marry anybody.
正确答案：because Linton is a rich gentleman but there is a true love in her heart.