The given histogram shows the frequency distribution of the speed of cars passing though at a particular spot on a highway. Study the graph and answer the question that follows.What is the ratio of the number of cars with speed less than 60 km / h to the number of cars with speed more than 80 km / h?

• A. 7 : 8
• B. 8 : 7
• C. 4 : 5
• D. 5 : 4