Answer: option 1. Food system deals with all aspects of food.
Explanation: Food system starts right from planting in the field, through harvesting and processing, to distribution and consumption; even the disposal of wasted food. It involves the input and output of all activities from planting to harvesting to processing into consumables to packaging, marketing, conveying to different destinations, consumption as well as disposal of all food items in an effort to feed a nation.
Food systems encompasses various fields starting from agriculture to economics, advertising, nutrition and retail. It is a capital intensive system. When handled properly, effective food systems maximise output while cutting wastage. This may be the solution to ending hunger in many nations