Some Sales Managers Are Talking Shop

Multiple Choice

Some sales managers are talking shop.Which one of the following quotations refers to a leftward shift of the demand curve?

A) "It has been an unusually mild winter; our sales of wool scarves are down from last year."
B) "Since our competitors raised their prices, our sales have doubled."
C) "We decided to cut our prices, and the increase in our sales has been remarkable."
D) "More firms are producing biodegradable products."
E) "The Green movement has sparked an increase in our sales of biodegradable products."