Select from options: Continue writing the next sentence.

How to seal travertine
Test whether sealing is necessary.
Polished travertine often doesn't need sealing, but you don't need to guess whether or not it's a good idea. It's easy to test whether sealing is required by dropping a few drops of water in a few inconspicuous areas.

Choose from:
(a). Once you've accepted a stain, you can go ahead and seal the entire stone floor. A drop of water won't begin to remove stains unless the stone floor becomes saturated.;
(b). Let the water stand five to ten minutes, then blot dry. If the travertine stays darker in color for more than a few minutes, sealing is probably a good idea to protect it from other liquids that could leave a permanent stain.;
(c). If you notice one drop washing into a remaining area, it's probably safe to keep your travertine clean. If you see a drop or two traveling to another area, it's safe to leave your travertine clean.;
(d). Dry travertine with a drop of liquid topcoat or a touch of water. Once the travertine has dried, dry it with a drop of liquid topcoat so it shines, not drips.;
Answer:
(b).