We can break down the original argument and then compare it to the given options to find the one with the most similar flawed reasoning.
The original argument structure:
1.
Premise 1: Returning organic wastes to soil is good for waste disposal if two conditions are met (nontoxic and low energy transport).
2.
Premise 2: Small-scale organic farming meets these two conditions.
3.
Conclusion: Therefore, returning organic wastes to soil is good for small-scale organic farms to solve waste disposal problems.
The flaw in this argument is that it assumes that meeting the necessary conditions is sufficient to conclude that the solution is good. It ignores the possibility of other factors that might make this solution less desirable or other solutions that might be better.
(A) Plants thrive if they get an abundance of moisture, light, and nutrients. In greenhouses, plants get an optimal combination of all three, which is why commercially produced plants are so healthy when you first buy them.This option doesn't have the same structure or flaw. It's a straightforward cause-effect statement.
(B) When every country has equal access to markets, which will be the case 20 years from now, globalization of markets will provide a way for each country to optimize its use of resources. So, globalization of markets will show the desired results 20 years from now. This option has a similar structure, but the flaw is different. It assumes that future conditions will lead to a certain outcome without considering other factors.
(C) To be viable, a business idea must be clear, cost-effective, practical, and responsive to a market demand. Your idea for a website information service has all these properties, so it is viable.This option has the most similar structure and flaw to the original argument:
1. Premise 1: A business idea must have four properties to be viable.
2. Premise 2: Your idea has all four properties.
3. Conclusion: Therefore, your idea is viable.
The flaw here is the same as in the original argument: it assumes that meeting the necessary conditions is sufficient to conclude viability, without considering other potential factors.
(D) Those competitors—and only those—who meet all of the following criteria are eligible for the award: they must be under 19 years of age, be in secondary school, and have played the sport for at least the two years immediately preceding the competition. You meet all the criteria, so you are eligible.This option is a valid argument form and doesn't contain the same flaw.
(E) A meal is nutritious only if it includes both carbohydrates and protein. Almost 80 percent of the calories in what I ate for lunch were from fat, so what I ate for lunch was not nutritious.This option is a valid argument form and doesn't contain the same flaw.
Therefore, the answer that exhibits flawed reasoning most similar to the original argument is (C).