Where do outdoor molds typically grow?

Outdoor molds typically thrive on organic materials where moisture is available, making it essential to recognize the correct environments for their growth. The option that identifies corn, wheat, soybeans, and compost highlights a common reality; these materials provide a rich source of organic matter for mold spores. In agricultural settings, when these materials are decomposing or exposed to moisture, they create ideal conditions for mold development.

In contrast, while molds can be found in a variety of settings, they are not exclusively limited to wet environments or urban areas with food waste, as the other options suggest. Molds are particularly adept at colonizing and degrading organic matter, particularly in agricultural or compost scenarios. Hence, the prevalence of outdoor molds on crops and compost further supports the significance of option C in illustrating where these organisms most often grow.