Nhận biết (M1)

The American foxhound descends, as most dog breeds of the Americas do, from dogs carried over from Europe in the colonial era. The Xoloitzcuintli, by contrast, belongs to the handful of breeds descended from non-European populations that were here before colonization. Researchers added a further breed to that handful in 2013: the Carolina dog, native to rural pockets of the southeastern United States, which carries a distinctive genetic tie to East Asian populations, themselves the forebears of the precolonial dogs of the Americas.

What is the subject of the main distinction the text draws between the dogo argentino and the Xoloitzcuintli?

• A.

  The size, the colouring and the other traits the two breeds are typically associated with

• B.

  Where the populations that the two breeds descend from came from

• C.

  How much the two breeds gave to the ancestry of more recently developed breeds

• D.

  How quickly each breed spread out of its place of origin into the southeastern United States