答案

None of the three descriptions proposed in the reading is accurate enough to illustrate the role Spartacus had played in the fight against Rome.
Firstly, from the perspective of his original purpose of the battles, the professor states his doubt, because according to the lecture, they could have flee away after the victory of the first battles. On the contrary, his army started fighting in the further region within the Rome boundary in the later years, which matches with their purpose of revenge and wealth.
Moreover, judging from his military talent, the professor holds a different view, as the lecture further illustrates that although he did win the first few battles, the victory was based on the Rome’s underestimation to Spartacus’ army. After the most superior Roman troops had been sent, Spartacus was defeated immediately.
Last but not least, on the point of his salvation to the slaves, the professor never fails to express his concern, because in terms of the listening, there is a lack of evidence to support the saying. The most proper source of the saying is said to have come from the requirement of plays in the 18th century, when the fight against slavery in play was an important spiritual support to the slaves in their fight against slavery. And Spartacus had thus been described as a hero. (222 words)