Correct Option (A)
The passage explicitly identifies two primary factors contributing to the unsustainability of production patterns:
- Heavy dependence on fossil fuels: The text states that "Current production models rely heavily on fossil fuels. We now know that this is unsustainable..."
- Limited availability of resources: The passage further clarifies that the reliance on fossil fuels is unsustainable "because the resources are finite." This directly corresponds to the limited availability of resources.
Therefore, both statements 1 and 2 are accurate reflections of the reasons for unsustainability as presented in the passage.
Incorrect Options:
The passage mentions "Expansion of recycling" as an action undertaken by some developed countries to "alleviate the worst effects" of unsustainable patterns. Recycling is presented as a mitigating measure against unsustainability, not a cause of it. Consequently, statement 3 is incorrect in the context of contributing to unsustainability in production patterns.