What should a candidate do if they do not know the answer to a question?

When faced with a question that a candidate does not know the answer to, the most strategic approach is to narrow down the available choices and make an educated guess. This method allows the candidate to eliminate obviously incorrect answers and increase the likelihood of selecting the correct one.

By engaging in this process of elimination, candidates can reduce the options to those they find most plausible based on their understanding and knowledge. Making a calculated guess in this manner utilizes their critical thinking skills and can contribute positively to their overall score on the exam.

The other strategies do not maximize the candidate's chances of answering correctly. Skipping the question entirely misses an opportunity to potentially gain points, and leaving an answer blank guarantees no chance of credit. Choosing the first option listed is arbitrary and does not take into account any reasoning or knowledge the candidate may have, which diminishes the effectiveness of their test-taking strategy.