The significance of the debt-for-nature programs can be explained as "The programs provide a sustainable-development approach to reducing uneven levels of development between countries."
What is debt-for-nature program?
The debt-for-nature program is a tool used by to promote contribution in environmental conservatism. A debt-for-nature swap involves purchase of foreign debt, conversion of it into local currency and then using the same for conservation activities.
The main benefit that can be derived from the program is the promotion of sustainable development and equal development between countries.
Therefore the correct option is B.
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