I believe this is all of the above
The correct answer is commuter marriage.
Commuter marriage refers to the type of marriage which exists between two people who don't live together. In the case above, the husband lives in another city due to work, whereas his wife and kids live in their old city. However, he still comes to visit them as much as he can, when he is not working.
Answer:
B > Voluntary trade involves two parties, both of which agree freely to making a trade
Answer:
The democracy in Athens has been considered one of the first ones to be established around the world.
Explanation:
The democratic model was based on the indirect democracy in which the representatives weren´t selected to be voted. Instead, the population took place on the executive and legislative powers personally. Participation was universal and economic status was not taken into consideration. This model had a contribution during 400 B.C. by Cleisthenes who is considered to be responsible of the creation of the institutions that take place in this type of democracy.