Question

a risk taker who starts new businesses and/or brings new products to the market is called an
beaucrat
economist
entrepreneur
instigator

Explanation:

The question defines a risk taker who starts new businesses and/or introduces new products to the market. Among the options, "entrepreneur" specifically refers to such an individual in business contexts. A bureaucrat works in an administrative system, an economist studies economic systems, and an instigator provokes actions—none match the given definition.

Answer:

entrepreneur