< Question 5 of 15 9 8 100 175 225 275 300 Quantity of energy-efficient light bulbs (thousands) FIGURE 3 - 2 Refer to Figure 3 - 2. A shift of the supply curve from S to S1 could be caused by O A. an expectation that new government regulations will ban the use of energy - efficient light bulbs. O B. a change in consumers' preferences away from ordinary light bulbs toward energy - efficient light bulbs O C. a decrease in the price of glass, a major input in the production of energy - efficient light bulbs. O D. an increase in the price of energy - efficient light bulbs. O E. a decrease in the price of energy - efficient light bulbs