A recipe for roasted red-pepper pasta calls for 4 red bell peppers and 5 black olives. Calculate

Question:

A recipe for roasted red-pepper pasta calls for 4 red bell peppers and 5 black olives. Calculate the given unit ratio. What does your result mean in this situation?
a. The unit ratio of the number of red bell peppers to the number of black olives
b. The unit ratio of the number of black olives to the number of red bell peppers