<span>An artifact is an object made by a human being, typically an item of historical interest.</span>
The correct answer is (2) an economist. study supply and demand for goods and services.
an anthropologist studies people in general, for example social groups but also individual people.
A sociologists studies the dynamic of a society
a political scientist studies politics.
<span>Railroads played a large role in improving travel and transportation in the US and Europe, especially in the 18th century.</span>