Tom can do a piece of work in 7 days, whereas Jay can do the same work in 14 days.
How long will they take to finish the work if both work together?

A

$$5\cfrac{2}{3}$$ days

B

$$4\cfrac{2}{3}$$ days

C

$$7\cfrac{2}{3}$$ days

D

$$2\cfrac{2}{3}$$ days