Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to wash white clothes [title] Separate white clothes from light-and dark-colored clothes. [step] Whites should always be washed separately from colored clothes to avoid colors transferring to and staining white clothes. [title] Separate whites with colors from all-white whites.

Ending1: [step] One color should be washed in light colors, such as white or gray; the other should be washed in white. [title] Wash white clothes in machine laundry detergent every two to three days. Ending2: [step] Light blue and blue whites should be washed separately from black solid colors, and dark blue and black whites should also be washed separately from black solid colors. [title] Measure white as your " kitchen " color palette. Ending3: [step] This helps prevent colors from bleeding onto all-white clothes, despite how small the surface area of color may be. For example, separate a white shirt with bright red stripes from all-white t-shirts. Ending4: [step] White items are only washed one way. Clothes can be washed in separate holds if they are not white.

Answer format: ending1/ending2/ending3/ending4