In the BRFSS dataset, there is a strong relationship between vegetable consumption and income. The income of people who eat 8 servings of vegetables per day is double the income of people who eat none, on average.
Which of the following conclusions can we draw from this data?
A. Eating a good diet leads to better health and higher income.
B. People with higher income can afford a better diet.
C. People with high income are more likely to be vegetarians.