In a certain code language,
‘A # B’ means ‘A is the mother of B’,
‘A % B’ means ‘A is the brother of B’,
‘A − B’ means ‘A is the wife of B’ and
‘A @ B’ means ‘A is the father of B’.
How is K related to Y if ‘K − L @ P # O % Y’?
AMother's sister
BMother's mother
CMother
DSister