It can be deduced from the given that what Mario used as payment for the goods that he acquired is also goods. The answer to this item is commodity. It is a type of money that is not in a form of cash but has a value that can be an exchange for another commodity.
Explanation:
As an anthropologist, at parties, I can pay attention to the evolution of the people because there I can see both the younger and older generation.
The new generation of young people, as I can see, is having different clothes and their clothes is usually something that is attracting attention. They always have their phones with them and usually, those are big phones and they are filming everything. I have a feeling that the older generations are more likely to enjoy the party or some other event than the younger ones. The older generation of people are usually talking or dancing with someone and I did not see some of them with their phone or text messages.
The younger generation is considering the older ones as weird people but I think that within fifteen years, they will be the on who will be considered weird also because of the evolution and changes that people are always going through
I’m pretty sure the answer is railways... but you may want to look it up
