|Question 7Verbal

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It is common for freshwater lakes near or above a latitude of north of the equator, like Opeongo Lake in Canada, to accumulate surface ice in winter. A study from 1980 to 2006 showed that, in general, the number of days per winter that such lakes have measurable amounts of surface ice is declining. However, a researcher claimed that some lakes have instead seen an increase in the duration of ice, citing as an example ______
Which choice most effectively uses data from the graph to complete the researcher's example?
both Lake Baikal and Kalmarinjärvi, which had fewer than 200 days of ice in the winter of 1980-81.
A
both Lake Baikal and Kalmarinjärvi, which had more than 120 days of ice in the winter of 2005-06.
B
both Lake Mendota and Kalmarinjärvi, which had more days of ice in the winter of 2005-06 than they did in the winter of 1980-81.
C
Lake Mendota, which had more days of ice in the winter of 2005-06 than it did in the winter of 1980-81.
D