Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to ship a pet to the uk [title] Make sure your pet is fitted with a microchip. [step] If you are shipping a dog, a cat, or a ferret to the uk, your pet should be fitted with a microchip by your vet. This microchip will ensure your pet is properly identified when he reaches the uk.

Ending1: [substeps] You will need to make sure your pet knows that his breed is prohibited in the uk, and that he has not been mistaken for a ferret before. A microchip is implanted into the scruff on your pet. Ending2: [substeps] Keep in mind microchips do not act as gps devices or tracking devices for your pet. Instead, they contain a radio-frequency identification that acts as a permanent id for your pet. Ending3: [substeps] You need a microchip for each pet you ship. Before shipping your pet, your vet should get it vaccinated and ensure you aren't bringing him into labour. Ending4: Some pet stores sell microchips that tell your vet how much they can travel to the uk and what their daily shipping cost is. [substeps] Most pet stores sell these microchips with words on them.

Answer format: ending1/ending2/ending3/ending4