This is the question:

Figure 1 are the demand curves for good X, which is an inferior good. Price Demand, D Quantity Refer to figure 1, explains a movement from D2 to Di, and explains a movement from A to B. I. A decrease in the taste of X; a drop in the price of a complement to X. Il. An increase in population; a drop in the price of X. Ill. An increase in income, a drop in the price of X. IV. An increase in the expected price of X; a drop in the expected price of X. O I only. O Ill only- O l and III. O ll and IV. O II, Ill, and