Passage Summary: A book says you always need luck to succeed, but the author says that's wrong because you actually need to work hard to succeed.

Conclusion: The claim that business success always requires luck is incorrect.

Reasoning: Success in business is known to require a significant amount of hard work.

Analysis: The author is falling into a 'false dilemma' trap by assuming that success must be caused by either luck or hard work, but not both. The book's claim is that luck is a necessary ingredient; the author's observation that hard work is also necessary doesn't actually contradict the book. It's like saying 'You need flour to bake a cake' and someone responding 'No, that's wrong, you need an oven!' Look for an answer that points out the author is treating two compatible factors as if they are mutually exclusive.