Vessels A and B contain mixtures of milk and water in the ratio 4 : 5 and 5 : 1 respectively. In what ratio should quantities of mixtures be taken from A and B to form a mixture in which milk and water are in the ratio 5 : 4 ?

• A. 2 : 3
• B. 4 : 3
• C. 5 : 2
• D. None of the above