They saw them as Honorable Men. The Estruscans taught the Romans to build with brick and to roof their homes with tile. They drain the water from marshes that lay between Rome's Hills. They laid out city streets. The Estruscans built temples, passing on their religious rituals to the Romans. They even influence the style of clothing that the Romans wore. Roman men adopted the Estruscan fashion of wearing short cloaks and togas. Finally, the Estruscan army served as the model for the mighty Army that the Romans would later create.
If a country is not able to produce some goods, it has to buy them somewhere else and bring them into the country - this is called importing, so the correct answer is b.
Selling goods outside of the country is called exporting and giving them away would be called donating.