The correct answer is: it is possible that an interest in politics caused Jessica to join the <span>political science club.
The argument in the question is flawed because it automatically assumes that Jessica's </span>involvement in her school's political science club led her to take an interest in politics, rather than the other way round, when in fact it is possible that an interest in politics is what actually caused Jessica to join the political science club. The argument in the question is flawed because it made a causal claim simply by an unfounded assumption.