4. In just 20 years, since market forces were unleashed by economic reforms begun in 1978, life for many urban Chinese has changed drastically. A recent survey of 12 major cities showed that 97 percent of the respondents had televisions, and 88 percent had refrigerators and washing machines. Another study revealed that farmers are eating 48 percent more meat each year and 400 percent more fruit. Cosmopolitan magazine . . . is read by 260,000 Chinese women every month. - Erla Zwingler, "A World Together," National Geographic, August 1999 The changes described in this excerpt took place in China as a result of - A. an adherence to environmentally sustainable practices

B. declining consumer demand for luxury househould items

C. the adoption of certain free-enterprise principles

D. a transition to a new political system​