Explanation

The natural geographical distribution of each animal determines the correct pairings:

• 1. Brazil — Indri (Incorrect): The Indri (*Indri indri*) is the largest living lemur species. All lemurs are strictly endemic to the island nation of Madagascar; they are not found in the wild in Brazil or South America.

• 2. Indonesia — Elk (Incorrect): The Elk or Wapiti (*Cervus canadensis*) is a large deer species native to North America and parts of Central and East Asia (such as Siberia and Mongolia). It is not native to the tropical ecosystems of Indonesia.

• 3. Madagascar — Bonobo (Incorrect): The Bonobo (*Pan paniscus*), a species of great ape, is endemic exclusively to the moist lowland rainforests of the Democratic Republic of the Congo (DRC) in Central Africa, not Madagascar.

Therefore, none of the pairs are correctly matched.

Hence, Option (d) is the correct answer.