UKMLA PLAB AMC USMLE Prometric MCQ

Question Number 0039
Question:
A mother brnigs her son to the physician because she has noticed that he has suddenly become fearful of strangers. The child has just learnt how to sit unsupported,and babbles. The physician notices that the child clings to his mother and appears frightened by the doctor. On examination the Babinski reflex is present.
The most likely age of this child is

a) neonate
b) 2 months
c) 6 months
d) one year
e) one and a half years