Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to understand pay as you go cell phone plans [title] Understand that there is a thin line between pay as you go and prepaid plans. [step] Pay as you go minutes or daily rates can last for 30 days or up to a year, depending upon the brand. Prepaid cell plans are usually monthly rates without a contract.

Ending1: Prepaid plans work, provided you follow up with customers and do not give out a card for payment; however, prepaid plans allow you to manage your plan and earn a monthly premium each month. This is because pay as you go is also earned. Ending2: Prepaid plans have variable budgeting, with a flat monthly charge. [title] Think about how you are going to pay yourself. Ending3: [substeps] However, sometimes these terms are used interchangeably, since you also " pre-pay " for minutes plans. [title] Use a pay as you go plan if you have unlocked cell phones at your disposal. Ending4: Usually, in most plans, you will have an option of doing this in advance of making your plan. The main advantage to having a careful budget and paying what you can in advance of the money you will need on the day of the plan is that will help your plan mix up normally.

Answer format: ending1/ending2/ending3/ending4