question: What does the average rate of change in the graph tell you?
  Choices:
  A:An increase in demand of 500 units will decrease the price of each toy by $\$ 1$
  B:An increase in demand of 500 units will increase the price of each toy by $\$ 1$
  C:The price of each toy increases by $\$ 0.50$ for each additional 1000 units demanded
  D:The price of each toy decreases by $\$ 0.50$ for each additional 1000 units demanded
query_wo: Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
  Question: What does the average rate of change in the graph tell you?
  Choices:
  A:An increase in demand of 500 units will decrease the price of each toy by $\$ 1$
  B:An increase in demand of 500 units will increase the price of each toy by $\$ 1$
  C:The price of each toy increases by $\$ 0.50$ for each additional 1000 units demanded
  D:The price of each toy decreases by $\$ 0.50$ for each additional 1000 units demanded
query_cot: Please first conduct reasoning, and then answer the question and provide the correct option letter, e.g., A, B, C, D, at the end.
  Question: What does the average rate of change in the graph tell you?
  Choices:
  A:An increase in demand of 500 units will decrease the price of each toy by $\$ 1$
  B:An increase in demand of 500 units will increase the price of each toy by $\$ 1$
  C:The price of each toy increases by $\$ 0.50$ for each additional 1000 units demanded
  D:The price of each toy decreases by $\$ 0.50$ for each additional 1000 units demanded
question_for_eval: What does the average rate of change in the graph tell you?
  Choices:
  A:An increase in demand of 500 units will decrease the price of each toy by $\$ 1$
  B:An increase in demand of 500 units will increase the price of each toy by $\$ 1$
  C:The price of each toy increases by $\$ 0.50$ for each additional 1000 units demanded
  D:The price of each toy decreases by $\$ 0.50$ for each additional 1000 units demanded