Read the following information carefully and answer the question which follow:
If 'A x B’ means ‘A is sister of B’.
If ‘A + B' means ‘A is the mother of B'
If ‘A `div` B' means 'A is daughter ‘of B'
If ‘A- B’ means ‘A is father of B’.
If `P+ R xx T-Q div S+U`, then how is S related to T?

Options

A. (a) Daughter
B. (b) Mother
C. (c) Sister
D. (d) Wife