3 men and 5 boys can complete a task in 15 days; whereas 6 men and 7 boys can complete the same task  in 9 days. Find the relationship between the task done by the boys and the task done by the men._x005F_x000D_

• A. The work of 4 boys is equivalent to the work of 3 men
• B. The work of 6 boys is equivalent to the work of 2 men
• C. The work of 3 boys is equivalent to the work of 4 men
• D. The work of 7 boys is equivalent to the work of 3 men