Write the next sentence in the following story.

How to care for rayon
Read the label prior to purchase.
Many rayon garments are hand wash or dry-clean only. Check the label to see if your rayon purchase is washer-safe.

OPT: (I) Washing rayon in the bathtub is one of the most common ways to wash rayon, as the water is too hot but it isn't as fast as washing rayon oil, which you can transport to the bath. This is even more important if you're using absorbent detergent, as that tends to be more dense than other clothing. (II) Though there are many different brands, they all take care of the same needs. Some brands offer only special weather-safe soaks, while others require specific cleaning agents to be used. (III) To be sure that, follow the instructions listed on your person's label, and always read and follow all instructions exactly. Other garments can also be machine-washed, but will require additional washing instructions. (IV) If it is not, know that you will have to put in extra effort to care for the fabric. Some rayon composite fabrics won't require hand washing or dry-cleaning.. The answer should be
(IV)