12. The type of line used to make a hairstyle appear longer and narrower is a(n): a. open line
c. contrasting line
b. vertical line
d. curved line

Vertical lines

Explanation:

In simple words, In hair fashion, vertical lines establish length and height. When the eye traces the lines up and down, they render a hairstyle look longer and narrower . Along the horizontal as well as vertical sides, diagonal rows are placed. They are also utilized to highlight facial expressions or diminish them.

Thus, from the above we can conclude that the correct option is A.

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