Answer: D
Step-by-step explanation: Ok, let's look at the graph...
Last year, the year books were way more expensive and they sold less as well.
This year, they sold more year books, and they managed to cut the price of each year book.
Last Year: They sold 900 yearbooks, and it costed about 15k
This Year: They sold about 100 yearbooks, and it costed 12.5k
Therefore, the answer is D
