you're wrong...best protection means enforcement. in Australia ratifying a treaty/convention DOES NOT make it automatically enforceable. You need to enact it into domestic law. we got that question in our trials, and the answer is B.
Yeah it was only one question! And I legit changed it in the last 5 seconds of the exam. And also some other girl made a mistake and ended up writing the correct letter.. which was also against the instruction ?