Final answer:
b. blush
The cosmetic used to color the cheeks is blush. Lipsticks and blushes are colored using a variety of dyes and pigments, including organic and inorganic substances like titanium dioxide mixed with red shades for pink colors.
Step-by-step explanation:
It's a cosmetic used to color the cheeks, and the correct answer is b. blush. However, we can dive a little deeper and discuss what gives lipsticks and similar products like blushes their color. Lipsticks and blushes gain their hues from a mixture of color pigments and dyes. The types of dyes include, but aren't limited to, bromo acid, D&C Red No. 21, and various Calcium Lakes such as D&C Red 7 and D&C Red 34, as well as D&C Orange No. 17. For example, to achieve a pink shade, manufacturers often mix white titanium dioxide with red shades. These cosmetic products utilize both organic and inorganic pigments for their broad range of coloring capabilities.