Nhận biết (M1)

The star Arcturus is unvaryingly bright, consistently ranking as one of the brightest stars in the sky (Arcturus ranked 4th on a recent list). By contrast, the brightness of the red giant Betelgeuse varies considerably. Indeed, between April and June 2020, Betelgeuse became an astonishing 40% brighter; ______, its ranking rose from 10th to 7th.

Which choice completes the text with the most logical transition?

• A.

  for example,

• B.

  in turn,

• C.

  specifically,

• D.

  in sum,