Which PTs will you be using for this class?

Can I join as well? :)

Has anyone tried scheduling the exam on ProctorU? Are we supposed to wait for their email?

I think the focus should be on it not being the sole cause! Answer choice C doesn't imply that this is the cause but rather this thing that was once thought to be the cause is not the only one that's at play in this effect! Also, another reason why D is correct is because all the other answer choices are NOT supported by the stimulus. I believe the most tempting one out of all was C but it's clearly wrong because an undiscovered planet might not be the one that causes/explains the effect. Who knows if there exists another planet? How can you support that there exists another unknown planet with an orbit beyond that of Pluto?? I hope it helps :)

Can E be eliminated because it says "nothing can justify the intended outcome of an action," not a means?

Interested!!