Refer to the Figure

Multiple Choice

Refer to the figure.
The figure shows the temperature of water at different depths in a typical temperate-zone lake. Which of the following statements is true?

A) In winter, but not in summer, the coldest water is also the densest.
B) In summer, but not in winter, the coldest water is also the densest.
C) Throughout the year, the coldest water is also the densest.
D) The coldest water is in the hypolimnion, so the deepest portion of the lake freezes first.