Answer:
do not occur in the wild, but have been developed exclusively by humans through selection and domestication
Explanation:
Most of the plants that we eat today were developed by humans through the process of domestication and artificial selection.
Artificial selection is the process by which selective species are intentionally bred which leads to the formation of new species and this leads to ultimately the domestication of these organisms.
The domestication and selection of plants took place more than 5000 years ago.
Therefore, most of the fruits, vegetables and grains that we consume today are produced by artificial selection and breeding.