From the stem we know that any successful entrepreneur needs to be self-motivated and independent.
However, these characteristics themselves don’t make a good entrepreneur.
We also know that a marketable idea is not enough to be a successful entrepreneur, but this doesn’t mean that such idea is not enough to become a successful individual.
A. Anyone who is well-known within his or her industry can become a successful entrepreneur.
Correct choice as far as I know. “can become” doesn’t necessarily mean “will become”. It means “can or might not become”. If a person is unknown, then we surely know that he or she cannot become an entrepreneur. However, if he or she is well-known, then he or she has the potential to become a successful entrepreneur.
B. Someone with a marketable idea must have an entrepreneurial spirit to fully maximize its potential.
“fully maximize its potential” is a totally new information. What is required to fully maximize the potential of a marketable idea isn’t given above.
C. Any individual in a lesser-known industry cannot become a successful entrepreneur without raising the profile of the entire industry
The argument says “must be well-known WITHIN his or her industry”. Even if the industry itself not widely acknowledged, a person can be a successful entrepreneur provided that he is well-known within even unknown industry.
So incorrect.
D. A marketable idea is not sufficient to guarantee individual success in every industry.
From the stem we know that any successful entrepreneur needs to be self-motivated and independent. However, these characteristics themselves don’t make a good entrepreneur. We also know that a marketable idea is not enough to be a successful entrepreneur, but this doesn’t mean that such idea is not enough to become a successful individual. An individual can be successful in many ways except for entrepreneurship.
So, nothing in the passage implies that “a marketable idea is insufficient to guarantee individual success in every industry”.
So incorrect choice.
E. Self-motivation and independence are the most defining characteristics of the entrepreneurial spirit.
We know that entrepreneurs posses these qualities, but nothing in the passage alludes that these are the most defining.
These can be necessary but not the most important in the hierarchy of entrepreneurial traits.
So incorrect.
So A