HELP!!

Which table represents a direct variation function?

a. Input x 1 2 3

Output y 3 5 7

b. Input x 6 9 12

Output y 8 12 16

c. Input x 4 6 8

Output y 7 9 11

d. Input x 3 4 5

Output y 9 16 25

Nicole is making carrot bread she needs 5 cups of carrots for 2 cups of sugar. what is the ratio of cups of sugar to cups of carrots that nicole will need? write the ration in three different ways