A alone can do a piece of work in 12 days and b alone in 16 days. with the help of c, they completed the work in 6 days. how much days will c take to complete the work alone?
a) c can complete the work alone in 48 days.
b) c can complete the work alone in 16 days.
c) c can complete the work alone in 24 days.
d) c can complete the work alone in 32 days.