A + B means 'A is the mother of B'
A-B means 'A is the father of B'
`A xx B` means 'A is the sister of B'
`A div B` means 'A is the daughter of B'
If `P + R xx T - Q div S + U`, then how is S related to T ?

Options

A. Daughter
B. Wife
C. Mother
D. Sister

Answer

B