Why was ITO not established at the end？

ercent increase in the price of ice cream and a 3 percent decrease in the quantity of ice cream sold. The revenue received by ice cream suppliers will ________ because the demand for ice cream is ________. （）A．decrease; price inelastic减少;价格无弹性B．increase; price inelastic增加;价格无弹性C．increase; price elastic增加;价格弹性D．decrease; price elastic减少;价格弹性