In a certain code of language - 

'M + Q' means 'M' is the wife of 'Q';
'M - Q' means 'M' is the father of 'Q';
'M × Q' means 'M' is the daughter of 'Q';
'M ÷ Q' means 'M' is the son of 'Q'.
If A ÷ B × J + U - D, how is 'B' related to 'D' ?​​

'M + Q' means 'M' is the wife of 'Q';
'M - Q' means 'M' is the father of 'Q';
'M × Q' means 'M' is the daughter of 'Q';
'M ÷ Q' means 'M' is the son of 'Q'.

From the above information following family diagram will be - 

From the abvoe family diagram B is sister of D.

Correct answer is (D) Sister.