The most basic social institution in the united states is, a: the government, b: education,c: the economy, d: the family

The most basic social institution in the United States, or anywhere for that matter, is the family. 

The answer is D. Family.

Explanation:

The family is a social institution formed by a group of people or individuals who live together under one roof, or it can also be without living under the same roof. The family is responsible for promoting the development of girls and boys as members of a nation and a social group, with a sense of belonging, with the ability to understand and respect the culture of their group and their country.

Wood is. Wood comes from trees which can be grown again. Coal and oil come from fossils of dead animals and plants and take so long to form we consider them non renewable. And iron is found in ores and we will one day run out of them as well.