Plato's teacher was Socrates so Socrates' direct methods were passed on down to Plato who reiterated them to his students.
The answer is "A" Vasco de Gama discovered a new route to india around the tip of Africa.
Answer:
Thebes was located in the Greek region of Boeotia, in central Greece. To the Southeast, we find the region of Attica, a small peninsula were Athens was (and is) located.
Attica is connected to the Peloponnese (the large peninsula that comprises the southernmost part of the Greek mainland) throught the Isthmus of Corinth. As the name implies, in this Isthmus, the ancient city of Corinth was located, as well as the city of Megara.
In the Peloponnese, there were many cities and villages, but two of the closest, geographically-speaking, to Thebes were Mycenae, Argos and Tegea. A bit farther inland, Sparta was located.