15) Quinn counts the number of ladybugs in a garden on Monday. She finds 27 red ladybugs and 9 orange ladybugs. On Tuesday she counts the number of ladybugs in the garden again. This time she counts a total of 108 ladybugs. If the ratio from Monday stays the same, how many orange lady bugs are there in total on Tuesday?

a. 21

b. 27

c. 36

d. 48

I worked it out and got C, but my answer guide got B can you confirm with work done?