Ancient greeks had to properly introduce themselves—including their father's name and country of origin—before they would be invited to dine.
a. true
b. false

a.True

Explanation:

Ancient Greek names were patronymic, it means the name of a Greek were formed based on his/her father's name, for example, Stevenson (son of Steven) is a patronymic name in English. Additionally, the country/city of origin was also added to the full name. We can say they followed the next pattern:

Personal or given name + father’s name + name that indicates the  origin city or particular family.

oil! is what i am assuming

you didn't list the options. however, a few communist countries today are: the people's republic of china, north korea, and cuba.