Raise an counterexample. A counterexample consists in a well-reasoned challenge to any point discussed in any of the articles. Any counterexample must have a source such that it comes from someones life experiences, which include, but are not limited to, your personal observations, stories you read, conversations you hear, etc.
All applicants go through a series of tests that check their level of English and knowledge of formatting styles. The applicant is also required to present a sample of writing to the Evaluation Department. If you wish to find out more about the procedure, check out the whole process.