UKMLA PLAB AMC USMLE Prometric MCQ

Question:
A six year old has turbulent feelings towards her mother who is sometimes kind and loving and sometimes rejecting and cruel. She percieves her mother as two, the "good mother" and the "bad mother".
This feeling is best described as

a) Splitting
b) ambivalence
c) symbiosis
d) transference
e) countertransference