Nhận biết (M1)

The state of North Dakota has designated the spiny water flea as an invasive species that could outcompete some of the state's native species. Many other states draw similar distinctions between invasive and native species. But researchers Alejandro Camacho and Jason McLachlan have pointed out that Earth's climate is changing in ways that challenge such designations. Climate changes may cause animals to leave their current ranges and establish new ones. Climate changes may also create good habitats in areas where a species couldn't live previously.

Which choice best describes the function of the underlined sentence in the text as a whole?

• A.

  It emphasizes the uniqueness of other states' approach to categorizing species.

• B.

  It highlights the widespread agreement among states on categorizing species.

• C.

  It suggests that the practice of categorizing species in other states is outdated.

• D.

  It provides a contrast to the researchers' perspective on species categorization.