If answer choice (E) had instead said "correctly believe", could it be the correct answer choice because it presents an alternative explanation of the form that we talked about with the dramamine/seasickness example? For example, here the X factor of being more susceptible to skin cancer is correlated with both increased use of sunscreen and increased rates of skin cancer, so it appears as though there's a positive correlation between sunscreen use and skin cancer?

Question on why E is wrong: Why can't we conclude based on [more panthers (250+) --> increase habitat] that a larger number of panthers today compared to 1970 would mean that the sufficient condition above is met and the habitat must be larger today than in 1970? Is it because the "more panthers" sufficient condition is specific to 250+ panthers?