X % Y means Y is the son of X;
X & Y means Y is the brother of X;
X $ Y means Y is the wife of X;
X @ Y means X is the mother of Y.
If, A @ B $ P % Q & R $ S % T, then how B is related to T?
1
Paternal Grandmother
2
Maternal Grandfather
3
Maternal Grandmother
4
Paternal Grandfather