Multi-choice problem: Continue writing the next sentence in this paragraph:

How to get soft heels
Soak feet in warm water.
Use your bathtub, or fill a container large enough to submerge your feet in. Soaking your feet in warm water will benefit your feet in a handful of different ways, such as hydrating your skin, soothing any foot pain, and getting them ready to be exfoliated.

Available choices: [I] Use your feet for a one-way bath. This is a low-impact, one-way bath that removes minerals you may have been keeping away. [II] Try putting some epsom salt into your foot bath. Epsom salt is used for a number of conditions, but it can help your dry heels by soothing the dry skin and killing off bacteria or funguses that might be in the skin. [III] Fill a bowl or bucket with lukewarm water and a bit of detergent. Lower your feet (or feet in that bucket) in that water for 2-3 minutes. [IV] You can also try a foot soak at home to hydrate yourself and help keep your feet soft and supple. To do a foot soak, fill your bathtub to the top with water.
[II]