The correct answer is B) peanuts.
During World War II, farmers were encouraged to grow large amounts of peanuts oil-producing crops to support the war effort.
Also, during World War II, farmers had to produce more food with fewer workers. Farmers had many complications. For instance, if they wanted to buy a tractor, the War Production Board gave preference to built a tank using the available steel. And the prices for farmer’s products were set by the Congress and Office of Price Administration.
It is understandable that the priority in those years was the manufacturing of products to support the war effort. That is why During World War II, farmers were encouraged to grow large amounts of peanuts oil-producing crops to support the war effort.