To find the whole-to-part ratio for choices of vegetables (which includes both carrots and celery sticks) to carrots, we first calculate the total number of vegetables and then express it in ratio form.
Total number of vegetables = number of carrots + number of celery sticks Total vegetables = 20 carrots + 15 celery sticks = 35 vegetables
The whole-to-part ratio for choices of vegetables to carrots is:
35 (vegetables) to 20 (carrots)
So the correct answer is:
35 to 20