B. Give reasons for the following: 1. Farmers need more carbohydrates.

In farm animals, dietary carbohydrates provide well over one-half of the energy needs for maintenance, growth, and production. Glucose is a primary energy source for certain animal tissues and a precursor for lactose synthesis in the mammary gland.

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)