successful entrepreneurs contribute to the economy by\nbecoming wealthy.\nexpanding markets.\nencouraging…

Brief Explanations:

Successful entrepreneurs introduce new products or services, which can open up new markets or expand existing ones. This stimulates economic growth. Becoming wealthy is a personal outcome, not a direct contribution to the economy. Encouraging free - trade is more of a government or trade - association activity. Creating business strategies is an internal activity that may or may not directly impact the economy in a broad sense compared to market expansion.

Answer:

expanding markets.