In storage, grains can be mix with

Answer: Option C

In storage, grains can be mixed with Malathion WP.
Malathion is a man-made organophosphate insecticide that is commonly used to control mosquitoes and a variety of insects that attack fruits, vegetables, landscaping plants and shrubs.
It can also be found in other pesticide products used indoors and on pets to control ticks and insects, such as fleas and ants.