One of the legacies of the Roman legions was discipline. In the legions, military law prevailed and discipline was brutal. Discipline on the battlefield kept units obedient, intact and fighting, even when the odds and conditions were against them.
Which one of the following statements best sums up the meaning of the above passage?
legacies:anything handed down from the past, as from an ancestor or predecessor
In that sense option c is also true since the starting of the passage says"One of the legacies of the Roman legions was discipline"