By 133 b. c. corruption in rome was widespread, and the time was ripe for reform. the leader who arrived on the scene was:

I believe that the choices of this problem consist of:

 Julius Caesar 
Brutus 
Marc Antony 
Tiberius Gracchus 

The correct answer is:

Julius Caesar

Gaius Julius Caesar (born on 13 July 100 BC and died on 15 March 44 BC), who is usually called Julius Caesar, was a Roman general and politician who played a significant role in the events that led to the demise of the Roman Republic and the subsequent rise of the Roman Empire. He is most notable for the reduction in corruption.

d) a constitutional amendment