PLEASE HELP ME! NO LINKS PLEASE!
Why most likely does Reagan’s make a comparison to “explorers” in the following passage (paragraph 8, Moscow State University Address)?

The explorers of the modern era are the entrepreneurs, men with vision, with the courage to take risks and faith enough to brave the unknown. These entrepreneurs and their small enterprises are responsible for almost all the economic growth in the United States. They are the prime movers of the technological revolution.
A)

He is warning the students that the future entrepreneurs will face limits the same way explorers did.

B)

He is encouraging the students to be risk takers in the future, and embrace failure as explorers did.

C)

He is applauding the students for finding their paths to college with a courage similar to explorers.

D)

He is suggesting that the students may have to venture outside their home country to be successful in the new age.