Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to become a contract delivery service for the united states postal service [title] Make sure you understand the requirements associated with being a contract delivery service. [substeps] You are required to sort mail for your route, drive to your route in your own vehicle, deliver mail to all addresses, and return to the post office at the end of your day. [title] Decide if you are available to work the hours the usps requires of you.

Ending1: [step] All deliveries must be completed 24 hours a day for four consecutive months, from march 25 , 2015 to the end of this year. You do not need a business's identification card. Ending2: [step] The usps can also look for you on the job through any type of arrangement and can determine if you meet the requirements. [title] Obtain an employer identification number (ein). Ending3: [step] This is a matter of personal preference, rather than service specifications. [substeps] Note that usps requires pizza delivery drivers to bring their own pizzas. Ending4: [substeps] As a contract delivery service, you must work monday through saturday. Depending on the size of your route, you can expect to work anywhere between 4 and 8 hours each day.

Answer format: ending1/ending2/ending3/ending4