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A
Cleanse the hair
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B
Hold or add texture/shine to the finished style
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C
Cut the hair
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D
Lighten the color
Why this is the answer
Finishing products such as hairspray, pomade, wax, or serum are used at the end of styling to hold the finished look in place and/or add texture, definition, separation, or shine. The choice of finishing product depends on the desired effect and the hair type. They are applied after the style is formed, not to cleanse or chemically alter the hair. Knowing the role of finishing products in setting and enhancing a completed style is part of the practical hairstyling knowledge assessed on the exam.
Source: Hair Care — Finishing Products