‘A = B’ means ‘A is the father of B‘.
‘A $ B’ means ‘A is the sister of B’.
‘A * B’ means ‘A is the mother of B‘.
‘A ? B’ means ‘A is the son of B‘.
If M ? C $ J * Z, then how is J related to M?

A

Sister

B

Mother's sister

C

Mother's mother

D

Brother