The correct explanation for why the Etruscans and the Greeks had such a strong influence on the Romans is:
1. Roman artists and engineers studied in Etruria and Greece.
Romans were influenced by the advanced artistic and engineering techniques they learned from the Etruscans and Greeks. They admired their architecture, sculpture, pottery, and other artistic forms. By studying in these regions, Romans were able to incorporate and adapt these styles into their own culture, which contributed significantly to the development of Roman art and engineering.
This interaction with Etruscan and Greek civilizations played a crucial role in shaping Roman culture and society. It wasn't due to being slaves or forced cultural imposition, but rather a mutual exchange of knowledge and admiration for the accomplishments of these civilizations.