Nhận biết (M1)

When trying to reconstruct a glacier's recent history, glaciologists like Dr. Priya Anand at the University of Alberta rely in part on data about the glacier's physical dimensions and its rate of ______ the Athabasca Glacier in Alberta, Canada, the Canadian Ice Service gathers such data in several ways: by trading information with provincial monitoring programs, by pairing maps of the glacier with detailed field descriptions of it, and by keeping a database of measurements such as the glacier's length (6 km).

Which choice completes the text so that it conforms to the conventions of Standard English?

• A.

  features and for

• B.

  features. For

• C.

  features for

• D.

  features, for