The City of Calgary issued a call for tenders for garbage compacting equipment. Three garbage compactors are to be purchased. The specifications are detailed in terms of the amount of garbage each compactor can handle per hour, the size of the compactor, and the cost. The City wants to select the garbage compactors that can handle the largest amount of garbage per hour while staying within the budget. Which of the following factors is the City primarily considering when selecting the garbage compactors?
1) The amount of garbage each compactor can handle per hour
2) The size of the compactor
3) The cost of the compactor
4) The brand of the compactor
