Nhận biết (M1)

As Iestyn Barr and his team of researchers discovered when establishing the glacial timeline of Antarctica, the Transantarctic Mountains—a 3,500-km mountain range spanning the continent —are home to glaciers of at least 60 million years in age. __________ the researchers concluded, Antarctica had glaciers long before the formation of its continent-wide ice sheet 34 million years ago.

Which choice completes the text with the most logical transition?

• A.

  Thus,

• B.

  By contrast,

• C.

  Even so,

• D.

  Nevertheless,