This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to remove acrylic paint from hair
Wet your hair with warm water or take a warm shower.
Massage the painted parts of your hair with your fingertips to soften any hardened sections. You could also take a bath to allow your hair to soak in the warm water for several minutes.

OPT: (a). Apply a liberal amount of shampoo to your hair and massage gently. No special shampoo is required-you can just use your normal product.. (b). Be sure to check the areas where the paint is discolored. The dye does not penetrate latex, which means it won't react with latex once removed.. (c). If your hair feels quite slick or overly oil-free, cool the wet parts of your hair with an olive oil bath. This will soften the paint, but the hair still needs to feel wet.. (d). The hotter you water temperature, the easier it will be to peel off the paint. If you must use water in your hair, use lukewarm water..
The answer is:
(a).