What are organic pigments primarily made from?

Organic pigments are primarily made from carbon chemistry, which refers to compounds that are derived from living organisms or are carbon-based in nature. These pigments are characterized by their structure, which includes carbon atoms along with elements such as hydrogen, oxygen, and sometimes nitrogen. This composition allows organic pigments to achieve a wide range of colors and properties suitable for various applications in art and design.

While the other options mention materials like metal compounds and ground minerals, which are typically associated with inorganic pigments, they do not capture the essence of organic pigments' structure. Synthetic materials can also refer to a range of substances, but in the context of organic pigments, it is the carbon-based nature that specifically defines them. Thus, carbon chemistry is the correct choice as it encompasses the essential elements that make up organic pigments.