Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to clean out a hamster cage [title] Examine the hamster's cage. [step] Before you start to clean, you should take a look at the hamster's cage to see what state it is in. Look for anything that needs cleaning at least once everyday, even if it's not a scheduled cleaning day.

Ending1: Cleaning your hamster's cage too often or too little can cause them undue stress, so make sure you are cleaning the right amount when needed. [substeps] Look for any droppings or wet areas in the bedding material. Ending2: [substeps] Look for food boxes on the bottom of the cage, behind the doors, near the hamster's feet. Have a friend help you clean the cage so you can set a schedule and follow it all day. Ending3: If it seems dirty or has not been cleaned, it is likely rotten. [substeps] Check the hamster's cage for whiteheads, which can be a sign of rotting rodent droppings. Ending4: [substeps] Check if the cage is lint free, and if anything is old, bacteria-free, or smelling bad. Also check any holes and crevices, so the hamster can't crawl out.

Answer format: ending1/ending2/ending3/ending4