The correct answer is C. Republic.
Macbeth, Hamlet, King Lear, and The Merchant of Venice are all plays written by William Shakespeare. Republic is a book written by Plato.
Macbeth is a tragedy about a man who murders the king of Scotland in order to become king himself. Hamlet is a tragedy about a prince who seeks revenge for the murder of his father. King Lear is a tragedy about an aging king who divides his kingdom among his three daughters. The Merchant of Venice is a comedy about a merchant who borrows money from a Jewish moneylender.
Republic is a philosophical work about the ideal form of government. It is one of the most influential works of political philosophy ever written.
The other four options are all plays written by William Shakespeare. Shakespeare is widely considered to be one of the greatest writers in the English language. His plays are known for their complex characters, beautiful language, and timeless themes.