Given Land/water Heating Contrasts, One Would Expect to Find the Coldest

Multiple Choice

Given land/water heating contrasts, one would expect to find the coldest winter temperatures in the Northern Hemisphere

A) near the North Pole.
B) in Siberia (70°N) .
C) in southern Canada (50°N) .
D) in Oklahoma (35°N) .
E) over the oceans off of Alaska.