Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to collect a urine sample from a female dog [title] Choose your container. [step] The ideal container is wide, flat and shallow, such as a baking tray, takeaway food container, or foil pie dish. It needs to be shallow enough to slide under a small dog, and yet wide enough to catch the urine if your aim is a bit off target.

Ending1: Your container should also provide enough drainage to allow the urine to spread. [substeps] It must also be easy to clean and disinfect the container. Ending2: [substeps] Your dog will probably avoid a lidded container as they will almost certainly attempt to swallow the urine. Jars or mesh milk jugs are good choices. Ending3: [title] Understand why sterilizing the container is important. [step] If the vet wants to check the urine for the presence of infection, he or she may want to culture the sample. Ending4: The container will also be less likely to damage the animal if the dog urinates inside. Also, the item has to have tight walls, so have your dog identify the location of the urine without having his nose near it.

Answer format: ending1/ending2/ending3/ending4