A and B together can complete a work in 12 days. B and C together can complete the same work in 8 days and A and C together can complete it in 16 days. In total, how many days do A, B and C together take to complete the same work ?

• A. ${\text{3}}\frac{5}{{12}}$$
• B. ${\text{3}}\frac{9}{{13}}$$
• C. ${\text{7}}\frac{5}{{12}}$$
• D. ${\text{7}}\frac{5}{{13}}$$