Answer:
The answer is letter C, Developing effective methods of food preservation.
Step-by-step explanation:
The question above is asking for a smaller, more manageable way to control the complex problem of the fruits and vegetables rotting before they reach the market.
Among the choices, letter C is the only smaller and manageable way that can be done. Chinese farmers and the agricultural sector could develop ways to preserve their fruits and vegetables, without rotting for some days, so it can still be fresh when transported to the market. Food preservation method will depend on the weather condition in that area. For example, during hot weather, the foods may be preserved by canning them or turning them into jams and jellies. In this way, they can earn some income rather than allowing the food to rot and go to waste.
When it comes to apples, "freeze drying" is an effective method to preserve them. This allows the fruit to be frozen in vacuum container and prevents it from coming in contact with water, as well as oxygen. These substance and elements can cause fast rotting or browning of fruits.