Read the following information carefully to answer the questions that follow.
(i) ′P+Q′ means 'P is the father of Q'.
(ii) ′P−Q′ means 'Q is the mother of P'
(iii) ′P×Q′ means 'P is the brother of Q'.
(iv) ′P÷Q′ means 'P is the sister of Q'.
Which of the following means 'D is the aunt of B'?