Nhận biết (M1)

Namibia has designated the house sparrow as an invasive species that could harm some of the country's 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 force animals from their current ranges. Climate changes may also create good habitats in areas where a species couldn't live previously. In the case of Namibia, these observations suggest that _________

Which choice most logically completes the text?

• A.

  even if Earth's climate doesn't change in the way scientists predict, the house sparrow will likely establish itself in the country.

• B.

  it's useful at present for the country to distinguish between invasive and native species in some instances but not in the case of the house sparrow.

• C.

  the country was previously home to some house sparrows but they were outcompeted by invading species.

• D.

  the country's classification of the house sparrow as an invasive species may describe a temporary situation rather than a permanent one.