4. The word “these” in line 11 refers to (A) sites (B) candidates (C) decades (D) sanctuaries

7. According to the passage, all of the following are achievements of the National Marine Sanctuaries Program EXCEPT (A) the discovery of several new marine organisms (B) the preservation of connections between individual marine species (C) the protection of coastal habitats (D) the establishment of areas where the public can observe marine life