The food industry is a people's livelihood industry that is related to the immediate needs of the people and a harmonious and stable economy and society. However, at present, China's food supply system as a whole has a surplus of low- and mid-end products, and a serious shortage of high-end and personalized product supply. Foreign products are becoming more and more dependent. Especially under the current economic new normal of speed shifting, structural adjustment, and power conversion, in-depth promotion of the supply-side reform of the food industry is an inevitable choice for achieving healthy and long-term development of the food industry. Food Standards It is not only an important part of the national food safety governance system, but also a main vane to guide the quality of food production. Therefore, the key to deepening the supply-side structural reform of the food industry is to build a set of advanced food industry standards. What's the most likely next in this paragraph? ['Main problems existing in the domestic food industry.', 'Lessons learned from foreign food industry standards.', 'Issues to focus on in building food industry standards.', 'Specific measures to deepen the supply-side reform of the food industry.']