P is the father of j . S is mother of n . Who is the brother of j . B is son of s . C is sister of B . How is j related to c ?
Brother/Sister of C?. Gender of J can not be concluded from the question!
Since gender of J is not known. We cannot find the relationship of J to C.
Hence answer is cannot be determined
We don't know the gender of J
So either brthr/sister