In a certain code language,
A + B means 'A is the wife of B',
A - B means 'A is the father of B',
A × B means 'A is the brother of B' and
A ÷ B means 'A is the sister of B'.
Based on the above, how is F related to S if 'F ÷ L × C + A - S'?
1
Brother's daughter
2
Mother's mother
3
Mother's sister
4
Father's sister