Read the following information, which describes changes that occurred in the food industry during the late 1800s, and answer the question below. An even greater engine of change came from industrialization. Beginning in the late nineteenth century, food began to be mass produced, mass marketed, and standardized. Factories processed, preserved, canned, and packaged a wide variety of foods. . . . Meanwhile, muckraking journalists and reformers raised questions about the health, purity, and wholesomeness of food . . .

Which phrase best describes one consequence of the changes described in this information?

A) a decline of the demand for fresh produce
B) a decrease in food advertising in newspapers
C) an expansion of specialized training for farmers
D)an increase in government regulation of food safety