Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to polyurethane a floor [title] Choose water-based polyurethane for a faster drying time. [step] Water-based polyurethane looks milky in the can but dries to a clear finish. It also has a low odor and dries more quickly than oil-based polyurethane.

Ending1: If you're hoping to complete this project in one day, water-based polyurethane is the way to go. [title] Select oil-based polyurethane to add a deeper hue to the existing wood. Ending2: Water-based polyurethane is inexpensive and can work for most floors but may not provide optimal results. A good rule of thumb is to apply it within 30 minutes of laying down. Ending3: [title] Choose heavy-duty polyurethane for a lighter finish. [step] Polyurethane is heavier than oil-based, and is especially good at preventing stains. Ending4: Ultimately, look for water-based polyurethane for a longer drying time. [substeps] Tap water, or water based polyurethane, dries in about 30 to 40 seconds.

Answer format: ending1/ending2/ending3/ending4