A, B, C started a business with their investments in the ratio 1 : 3 : 5 After 4 months A invested the same amount as before and B as well as C withdraw half of their investments The ratio of their profits at the end of the year is

A. 4 : 3 : 5
B. 6 : 5 : 10
C. 5 : 6 : 10
D. 10 : 5 : 6