Read the following excerpt from a journalistic feature on environmental conservation in Costa Rica:
In the lowland rainforests surrounding Costa Rica’s Golfo Dulce, smallholder farming cooperatives and conservation biologists have pioneered an integrated corridor management model to halt forest fragmentation. Rather than relying solely on state-enforced perimeter boundaries, the Golfo Dulce Agro-Forestry Alliance incentivizes landowners to interplant native canopy trees—such as the purple heart and mountain almond—within commercial cacao and vanilla plots. These agroecological buffer zones restore arboreal migration pathways for scarlet macaws and squirrel monkeys while securing diversified agricultural revenue for rural families. A recent regional biological survey revealed that canopy connectivity increased by 28 percent across private parcels over the past five years, accompanied by a 15 percent rise in household income from certified shade-grown exports. While technical challenges remain in standardizing soil nutrient monitoring and expanding nursery operations, the alliance demonstrates that ecological connectivity is most resilient when conservation goals align directly with local economic security.
Which of the following statements best expresses the main idea of the passage?
- ACanopy connectivity expanded by 28 percent and farming household revenue increased by 15 percent over a five-year period.
- Long-term ecological corridor preservation is most successful when habitat restoration is integrated into profitable community agriculture.Cevap
- CState-managed conservation boundaries have proven entirely ineffective and are being replaced by unregulated private farming.
- DThe primary objective of the alliance is to resolve technical difficulties surrounding soil testing and tree nursery expansion.