Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage.
The survey of eating habits was ___(1)___ in Ho Chi Minh City by a group of Japanese nutritionists in order to understand the changes of eating environments and habits accompanying the economic growth after the war in Viet Nam.
The surveys were made in 2002 and 2006. In the survey in 2002, the Vietnamese surely took three meals a day without ___(2)___ any snacks. They mainly took staples like rice, bread, noodles and some vegetables. But the intake of oils and fats and milk products was rare. It is like ___(3)___ of Japan several decades ago.
In the survey in 2006, the changes in eating habits were observed. ___(4)___the rising of their concern on eating, they rarely took food late at night. The variety and frequency of food was increased. The intake of snacks was also increased. These changes are ___(5)___ to have been caused by the change in their ___(6)___ towards eating due to the change in lifestyle and those changes had been observed in Japan. More ___(7)___, however, they were in Viet Nam.