I recall having problems with a couple of questions. Very ambiguous. I did email the contact with the questions copied, the possible answers and the one(s) I thought were correct.
Do not read so much, look about you and think of what you see there.
Richard Feynman-- letter to Ashok Arora, 4 January 1967, published in Perfectly Reasonable Deviations from the Beaten Track (2005) p. 230