Help me with this analogy question, plz. I got this from a vocabulary book. Which one has the closest relationship as the pair in capitals? CACHE : CONCEALMENT a. umbrella : rain b. barrier : communication c. oven : fuel d. showcase : privacy e. automobile : transportation The book says the correct answer is d, and its explanation for this doesn't make sense at all to me. I thought the answer was e. 'Cache' is made for 'Concealment' and 'Automobile' is made for 'Transportation'. 'Showcase' is for showing its best part which is carefully chosen to go public, which might mean that it's for hiding privacy. But I think this is too far. Help me understand, please. Thanks a million!