Books and Authors question: With Capital, Volume I as the reference work, which book–author pair is correctly matched?

The source-backed, question-specific record explains: Capital, Volume I is correctly associated with Karl Marx. The work’s first publication is conventionally dated to 1867, and its original language is German. These three details—title, author, and language—form the decisive bibliographical combination required here. Karl Marx, a major German literary figure, is also associated with The Communist Manifesto; that companion title helps confirm the authorship independently rather than through guesswork. The distractor set (The Republic — Shashi Tharoor; An Era of Darkness — Charles Darwin; On the Origin of Species — Plato) must therefore be tested as complete statements: one true fragment cannot make an entire option correct. A common examination trap is to confuse an author’s nationality with the language of composition, or a translation date with first publication. Another is to treat a well-known adaptation or later edition as the original work. Revision takeaway: remember the compact chain “Capital, Volume I — Karl Marx — German — 1867,” and connect it with The Communist Manifesto for stronger recall. This evidence establishes the bibliographic relationship required in this Books and Authors item. A correct solution must preserve the exact title, author, publication context, language, award or comparison requested by the stem. Similar periods, genres or national traditions do not make two book–author pairs interchangeable. Option A gives Capital, Volume I — Karl Marx and satisfies the wording of the question. The remaining choices—The Republic — Shashi Tharoor, An Era of Darkness — Charles Darwin and On the Origin of Species — Plato—do not satisfy the complete requirement.