Jerome, Kevin, and Seth shared a submarine sandwich. Jerome ate 1/2 of the sandwich, Kevin ate 1/3 of the sandwich, and Seth ate the rest. What is the ratio of Jerome’s share to Kevin’s share to Seth’s share?
a. 2:3:6
b. 2:6:3
c. 3:1:2
d. 3:2:1
e. 6:3:2