The charts show the percentage of their food budget（预算）the average family spend on restaurant meals in different years. The graph shows the number of meals eaten in fast food restaurants and sit-down restaurants.
From charts and graph above, which of the following information is NOT TRUE?
A . The chart shows the data about 30 years.
B . Since 1990, fast food restaurants serve more meals to the families than to the sit-down restaurants.
C . In 1970, families ate the same number of meals at fast food and sit-down restaurants.
D . The chart shows just 10 percent of the food budget spend on restaurant in 1970 and twenty percent in 1980.
