In order to complete this analogy, we need to understand the meanings of the first pair of words. To apprehend and to emancipate and antonyms, meaning they have opposite meanings - to apprehend means to arrest, and to emancipate means to free. Having this in mind, we need to find another pair of antonyms. The correct answer should be E. conceal : manifest, because to conceal means to hide, and to manifest means to show.