Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to send packages to mexico [title] Select a public carrier for the most economic shipping. [step] Use the united states postal service or your local public carrier for the most economic shipping options. Note that these shipping options will typically take a little longer to get there (about 6-10 business days) than private carriers.

Ending1: If you are sending small packages and keeping them safely covered, these options will still give you complete control over the shipment. This may give you the advantages of pricing the package faster, changing your delivery date frequently, and setting a price difference for the package. Ending2: [substeps] Note that public postal carriers may have more restrictions regarding the size, shape, and contents of your package. [title] Select a private carrier for the most flexibility on size and weight. Ending3: [substeps] To calculate your shipping cost for a private carrier, compare rates for public carriers. Private carriers will have an alert on each carrier to indicate their shipping costs are a different proportion of the gross liribar. Ending4: By using one of these to send packages, you will avoid the direct mail method. [title] Place an advertisement in an advertisement about your package.

Answer format: ending1/ending2/ending3/ending4