The correct answer is: e. II and III.
Agribusiness in the developing world is very important for the people in this parts of the world because it both, manages to contribute to better food supply, and gives support for the traditional agricultural practices. The agribusiness, in this type of countries is usually the dominant business for the country, so most of the economy revolves around it.
The food supply is improved by it, because it buys out the produced food, and be it fresh or manufactured, is distributing it wherever there's demand for it.
The agribusiness is a great supporter of the traditional practices in agriculture, but it also helps in the development and modernization of them. It is worth to notice that the agribusiness is using this type of agriculture in the production of organic food, and the demand for it in the global market is rising constantly, being payed very well too.