Thanks for the question! So this one isn’t necessarily one that you have to diagram out, though I suppose you could if you wanted to. But the basic idea is that abundant rainfall in sub-Saharan Africa will come before hurricanes hitting the US a lot. And the argument then concludes that the abundant rains must therefore somehow promote the ability of the winds to form hurricanes; in other words, the abundant rains in sub-Saharan Africa are causing the hurricanes in some form or another. So this is going to be a classic correlation vs. causation issue in the stimulus, and we should look for an answer choice that has that same kind of flaw. Taking a look at (C), we see that it makes the same mistake. (C) tells us that people who later become successful entrepreneurs played competitive sports, so playing competitive sports must enhance a person’s entrepreneurial ability (and thus in part cause them to become a successful entrepreneur). But there might be a third trait that causes both or some other explanation; again, we assume causation when we see correlation, and this is why (C) is the correct answer choice.
Hope this helps! Feel free to ask any other questions that you might have.
