Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to treat ringworm in guinea pigs [title] Recognize the symptoms. [step] Bald patches are the first and most obvious signs of ringworm. The fungus weakens the hair follicle, which then causes their fur to fall out.

Ending1: The initial white flakes are usually accompanied by yellow patches. [substeps] Pay attention to the duration of shedding. Ending2: Bald patches will develop a crusty appearance with time and will eventually be accompanied by red patches around the eyes, ears, and nose. [title] Find a vet who can treat guinea pigs. Ending3: The patches also begin to develop into a dark brown streak below the base of the tail, where it was before the first sign of ringworm. As the fungus progresses, the coloration will become lighter and larger. Ending4: In the first month of guinea pigs, the bald patches intensify and the hair is papery. [substeps] If the bald patches persist for more than two weeks, the guinea pig may have ringworm.

Answer format: ending1/ending2/ending3/ending4