A government passes a law increasing taxes on banks. Two days later, there are several bank robberies. A politician who opposed the taxes claims that the new law is causing bank robberies. Which of the following explains the flaw in his argument?

a. the politician is trying to create a historical narrative that explains causation
b. the law and the robberies are only correlated by the fact they both involve banks
c. the argument is based on correlation when it should be based on causation
d. the politician made his argument before the law was passed