Given below are two statements:

Statement I: An overwhelmingly large proportion of the species is waiting to be discovered are in the temperate regions.

Statement II: For many taxonomic groups, species inventories are more complete in tropical than in temperate countries.

In the light of the above statements, choose the most appropriate answer from the options given below.

A significant proportion of the world’s biodiversity is concentrated in the tropics. For many taxonomic groups, species inventories are more complete in temperate than in tropical countries. Global species richness can be estimated by comparing the number of species in a taxonomic group that has been thoroughly studied in both temperate and tropical regions. By comparing the ratio of insects in these two regions, biologists can extrapolate this ratio to estimate the number of species in other taxonomic groups or regions.