Adam, I remember sitting down at Sherburn in the room where people take exams a couple of years ago, working everything out and my headings not being the same as the choices on the paper, the delight of multi choice is that two usually stick out like a sore thumb as to being wrong, then you are left with two and use your headings to work out which is correct, well that's what I did and it worked out fine, but if you start with the wrong answer it will lead you down the garden path and the test will be buggered, as a bloke did the same day as me and was a bit fed up. So it's maybe worth making sure everything is correct before ploughing on, but most of all good luck, you have the right attitude by asking questions so its usually those people that pass the tests!
Cheers, Jim