Answer:
b)
Step-by-step explanation:
Based on the chart, we can see that the x-axis correspond to the different years and the y-axis correspond to the number of households.
Then, the households are divided by number of children in each household and sorted by colors.
Yellow means there are 0 children in the household.
Red means there is 1 child in the household.
Blue means there are 2 children in the household.
Green means there are 3 children in the household.
And orange means 4 children in the household.
Based on the chart we can tell that in 1960, there were over 1,500,000 households with no children, there were around 500,00 households with 1 children and less than 500,000 households with 2,3,4+ children.
Therefore, the correct answer is B) There were over 1,500,000 households with no children.