A) $13.20
B) $12.72
C) $8.04
D) $3.30
E) None of the precious choices are correct.
you need to actually add the diagram you know, save it as an image (or take a photo) and put it on here
5 people ,5 hours ,5 presents
1person, 5 hours ,1 present
if we allocate 1 person for each gift it would take 5 hours for each person to make a present