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 with 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 taking any snacks. They mainly took (2)_________ like rice, bread, noodles and some vegetables. But the (3) _________of oils and fats and milk products was rare. It is like (4)________ of Japan in several decades ago.

In the survey in 2006, the changes in eating habits were observed. (5) _________the rising of their concern on eating, they rarely took food late at night. The variety and frequency of food was increased. The intake (6)_________ snacks was also increased. These changes are (7) _________to have been caused by the change in their attitude towards eating due to the change in lifestyle and those changes had been observed in Japan. More rapidly, however, they were in Viet Nam.

The intake (5)_________ snacks was also increased.