Concept:Using predators is a natural method of pest control in farming.
Explanation:Predators such as ladybirds, spiders, and birds feed on harmful insects and rodents.
Farmers encourage these predators to reduce pest populations naturally.
This method, called biological pest control, reduces crop damage.
It also lowers the need for chemical pesticides.
Therefore, predators are not used for flowering, soil protection, or fruit ripening.
Answer:A. control pests