Which of the following best defines "Optimas"?

The term "Optimas" refers to a faction in ancient Roman politics and is derived from the Latin word "optimates," which means "the best ones" or "the aristocrats." This group represented the interests of the elite, who were typically members of the upper class or aristocracy. They sought to maintain the status quo and protect the privileges of the wealthy against popular reforms that would benefit the common people.

In the context of the ancient Roman Republic, the optimates were contrasted with the populares, who were the faction advocating for the rights and power of the common citizens. Therefore, the definition of "Optimas" as "an aristocrat, the aristocracy" accurately captures the social and political significance of this term within Roman society.