Urban environments and metropolitan areas are making gradual advances on natural wildlife habitats. These gradual advances have negative consequences: some animals are perishing from habitat loss. Which choice most effectively combines the sentences?

Urban environments and metropolitan areas are making gradual advances on natural wildlife habitats. These gradual advances have negative consequences:some animals are perishing from habitat loss.

Which choice most effectively combines the sentences at the underlined portion?

a. habitats, and these gradual advances have negative consequences, because

b. habitats, resulting in negative consequences:

c. habitats; these advances have negative consequences:

d. habitats, and with negative consequences, because

Answer: b