Your Entertainment Price Index (EPI) Was Computed Based on Three

Your entertainment price index (EPI) was computed based on three goods: movie tickets,popcorn,and limeade.If you change the quantity of these goods from this year to next year and the prices of two of the three goods increase while the other price falls,then:

A) your EPI would definitely fall during the year in question if, and only if, you buy less of all the goods in question.
B) your EPI would definitely rise during the year in question because two of the three goods became more expensive.
C) your EPI might rise or fall, contingent on both the quantity of the goods that you bought and the prices of these goods.
D) your EPI might rise or fall, contingent only on the quantity of the goods that you bought and regardless of the prices of these goods.
E) your EPI might rise or fall, contingent only on the percentage of the market basket that these goods constituted and the percentage that each good occupied within the basket, regardless of the quantity change from year to year.