Answer:
b) a decrease of the biodiversity of an ecosystem.
Explanation:
A loss and deterioration of habitats is the main cause of the loss of biodiversity. Transforming jungles, forests, bushes, mangroves, etc., into agricultural fields, farms, dams, and urban areas destroys the natural habitat of the species. Such transformation is often not complete, however, it causes deterioration in the composition, structure, or function of ecosystems, which directly impacts native species.