The paragraph is followed by an incomplete phrase or sentence which summarizes the main idea of the paragraph. Choose the missing words of the phrase or sentence. 

Food marketing brings together the producer and the consumer. The marketing of even a single food product can be a complicated process involving many producers and companies. These businesses include not only chicken and vegetable processors but also the companies that transport the ingredients and those who print labels and manufacture cans.
The （）​ ​of activities in food marketing.