Write the next sentence in the following story.

How to iron curtains
Wash the curtains.
Unwrap the curtains if they are still packaged. After that, you should wash your curtains on a cold water delicate cycle and then dry them with low heat or no heat on a gentle cycle.

Options:
[a]. After washing, let the drapes hang for a few minutes and then remove them. If you are ironing curtains on a delicate blend, then wait for 5 minutes and then wash them using light soap and warm water..
[b]. Avoid placing curtains on a unheated dryer, especially if they are low quality like white and beige. You will want to gently dry and avoid washing them with hot, tap water..
[c]. Ensure you use a high temperature setting, which will speed up the process, since ultraviolet radiation from normal washing cycles can turn curtains into dry fibers. If you are using a low heat setting, then you should perform this simple chore at home : In the washing machine wash the curtains and hang them..
[d]. Beyond removing residue from your curtains, washing will also make stubborn wrinkles less difficult. If your curtains are especially dirty, as might be the case if you're swapping in old curtains that have been in storage, you may want to wash them in warm water, but only if the label recommends doing so... The answer should be
[d].