The ratio of present ages of son and daughter of a lady is 7 : 8 and the age of lady is sum total ages of her daughter and son. If the ratio of ages of son after 3 years and the age of daughter 6 years ago is 4 : 3 then what will be the ratio of the present age of lady and the age of her son after four years?

• A. 4 : 7
• B. 5 : 3
• C. 6 : 11
• D. 9 : 5
• E. None of these