Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to identify koalas by their nose patterns [title] Take a photograph of a koala's nose. [step] The best identification photos are taken from front-on and slightly below the koala. The focus should be on the nostrils, in good light (not too much shadow or contrast).

Ending1: [title] Note that koalas have individual noses that move in a straight line over the main nose. [step] A still portrait will have only a clear center of' nose'. Ending2: If there is any doubt about the nobel prize, get your shot taken at a local print shop. There are also prints you could take at home which can provide dramatic definition for your koala's nose pattern. Ending3: [title] Look at the koala's eyes. [step] The eyes are slightly bigger in front-on and darker at the bottom. Ending4: [title] Look at the white/pale pattern inside and around the nostrils. [step] This is the' target area' where the nose pattern exists.

Answer format: ending1/ending2/ending3/ending4