Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to care for dwarf hamsters [title] Pick out a hamster cage. [step] Dwarf hamsters are only around 4 inches long, but they like having a lot of space to run around and play. The cage should be big enough to give the hamster room to move around in addition to holding the hamster's food, water, and toys.

Ending1: The cage should not be too long or too small, though. Hamsters need space to run, to eat, to work, to sleep, and to exercise. Ending2: Choose from the following housing options : [substeps] A hamster aquarium. Buy a special aquarium made for hamsters or choose one designed for fish, which will do just as well. Ending3: [substeps] Dwarf hamsters are extremely sensitive to noise, so you may need to purchase a home that can handle this noise. You'll probably have to remove the nest and build a second cage. Ending4: [substeps] Dwarf hamsters do not like to have open crates or door edges, so you should choose a cage with soft plastic. Dwarf hamsters will usually do better with solid wood crates.

Answer format: ending1/ending2/ending3/ending4