Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to make sure that your dog is ok after giving birth [title] Clean your dog with a warm, damp cloth. [step] Make sure she's clean of any trace of blood, placental fluid, or fecal matter. Good hygiene reduces the risk of bacterial infection following birth.

Ending1: [title] Place your dog in a quiet, clean room. [step] Do not let her near electronic devices to prevent injury. Ending2: [title] Keep your dog isolated after the first birth. [step] If your dog is sick after giving birth, make sure that you do not physically nurse her during the first 24 hours after giving birth. Ending3: [substeps] You may see leaking fluids, called lochia, for several weeks after giving birth. These fluids are natural and normal, resulting from the shedding of your dog's uterine lining. Ending4: [substeps] Frequent vet visits during your dog's pregnancy and birth are particularly important for other reasons. Some may be necessary, like new birth spots, but not all are.

Answer format: ending1/ending2/ending3/ending4