Read the passage carefully and choose the correct answer.
In 1986 Vietnam launched a political and economic innovation campaign (Doi Moi) that introduced reforms intended to facilitate the transition from a centralized economy to a "socialist-oriented market economy." Doi Moi combined government planning with free-market incentives. The program abolished agricultural collectives, removed price controls on agricultural goods, and enabled farmers to sell their goods in the marketplace. It encouraged the establishment of private businesses and foreign investment, including foreign-owned enterprises.
By the late 1990s, .the success of the business and agricultural reforms ushered in under Doi Moi was evident. More than 30,000 private businesses had been created, and the economy was growing at an annual rate of more than 7 percent. From the early 1990s to 2005, poverty declined from about 50 percent to 29 percent of the population. However, progress varied geographically, with most prosperity concentrated in urban areas, particularly in and around Ho Chi Minh City. In general, rural areas also made progress, as rural housel olds living in poverty declined from 66 percent of the total in 1993to 36 percent in 2002. By contrast, concentrations of poverty remained in certain rural areas, particularly the northwest, north-central coast, and central highlands.
Government control of the economy and a nonconvertible currency have protected Vietnam from what could have been a more severe impact resulting from the East Asian financial crisis in 1997.
The development in Vietnam _______.
has been equal in every part of the country has focused only on agriculture is more prosperous in big cities than that in the countryside is more prosperous in the countryside than that in big cities