The art Director for a hospital wants to paint the walls in the pediatric center a new color. According to information found online, back in 2010, children had the following color preference: 25% for red, 10% for orange, 30% for green, 25% for blue, and 10% for pink. The Director wants to determine whether there is a difference in color preference between 2010 and now. Which no hypothesis shit the art Director use for this Chi-Square Test? A. null hypothesis. B. No hypothesis of no preference. C. No hypothesis of no difference from now on population. D. No hypothesis of no preference from known population