The city of Workney, in raising bus fares from $1. 00 to $1. 25, proposed that 18 fare tokens be sold for $20. 00 to alleviate the extra burden of the fare increase on the city' s poor people. Critics suggested alternatively that 9 fare tokens be sold for $10. 00, because a $20. 00 outlay would be prohibitive for poor riders The alternative proposal depends on which of the following assumptions? ['Fewer riders would regularly purchase 18 fare tokens at once than would purchase only 9 fare tokens at once', 'The outlay of $10. 00 for the purchase of 9 fare tokens would not be prohibitive for bus riders who are poor.', 'Poor residents of Orkney will continue to ride the buses in the same numbers despite the fare increase', 'Riders who are poor would be more likely to take advantage of the savings afforded by the 9-token offer than would riders who are not poor.']