A). Justice is defined by whoever has the most power.
Explanation:
Thrasymachus, the advocate and philosopher believed in the proposition that 'might can make right' because he thought that 'justice is defined by whoever having the most power'. <u>He described in his book that that 'justice is nothing but the advantage or possession of the stronger'</u>. He strongly believed in the natural statutes and thus, states that the one is strong or powerful, he/she possesses the authority, power, and justice to rule over the ones who are feeble and week. Therefore, according to his proposition <u>option A</u> is the correct answer.