|Question 12Verbal

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It is common for freshwater lakes near or above a latitude of 45° 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 Mendota and Kalmarinjärvi, which had more days of ice in the winter of 2005-06 than they did in the winter of 1980-81.
A
Lake Baikal, which had more days of ice in the winter of 2005-06 than it did in the winter of 1980-81.
B
both Lake Baikal and Kalmarinjärvi, which had fewer than 200 days of ice in the winter of 1980-81.
C
both Lake Baikal and Kalmarinjärvi, which had more than 95 days of ice in the winter of 2005-06.
D