What does rye primarily produce in North America?

Rye is primarily cultivated in North America for its role as animal feed. This grain is especially advantageous for livestock farmers due to its nutritional content and ability to grow in cool climates and less fertile soils where other grains may not thrive. Rye has high fiber content and is a good source of energy, making it an excellent feed option for ruminants and other livestock.

While rye can also be processed into human food products, such as rye bread, the scale and economic focus within North America tends to prioritize it as a feed crop. The other options, including cosmetics and pesticides, are not significant uses of rye. These applications do not align with the primary agricultural practices associated with rye cultivation in the region, underlining the choice of animal feed as the correct answer.