Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to keep your ferret's hair healthy [title] Brush the fur. [step] Use a rubber brush or a grooming brush intended for kittens or cats. Hold the ferret in one hand or have a helper do this.

Ending1: Brush its body twice a day and twice a week. [substeps] Be sure to brush your ferret's fur from the top to the end-the majority of the way where it reaches the body. Ending2: The brush or comb should be able to dig into the fur at any time. [substeps] If your ferret has fine hair, consider using a comb. Ending3: Use quick gentle strokes, and make sure you eventually brush all areas of the ferret's fur. [substeps] Ferrets tend to fidget when brushed so you may want to do frequent short sessions instead of longer attempts [title] Feed a hairball preventative to your ferret. Ending4: Run your finger from top to bottom in a figure eight pattern across the length of the coat. [substeps] Make sure the brush strokes across the hair in the direction the fur is supposed to grow.

Answer format: ending1/ending2/ending3/ending4