The Table Given Below Reports the Quantity Demanded of a Good

The table given below reports the quantity demanded of a good by individuals 1,2,and 3 at different prices.
Table 3.1

-Refer to Table 3.1.If Quantity Demanded 1,Quantity Demanded 2,and Quantity Demanded 3 are market demand schedules,then the change from Quantity Demanded 1 to Quantity Demanded 3 may have been due to:

A) an increase in price.
B) an increase in the number of sellers.
C) a decrease in price.
D) a decrease in the number of buyers.
E) a decrease in the price of a substitute good.