Coloring Books May Be Considered a "Legitimate" Activity for Children

Coloring books may be considered a "legitimate" activity for children who are experiencing stress because:

A) the bright colors of the crayons or markers will be distracting.
B) coloring in a coloring book is a cognitively undemanding activity that can be comforting.
C) the attention required to stay within the lines is distracting.
D) staying within the lines causes muscle fatigue.