49 pumps can empty a reservoir in $$6\frac{1}{2}$$ days, working 8 hours a day. If 196 pumps are used for 5 hours each day, then the same work will be complete in ?

• A. days
• B. ${\text{2}}\frac{1}{2}$$ days
• C. ${\text{2}}\frac{3}{5}$$ days
• D. days