In a Temperate Zone Lake, What Should the Temperature Profile $\degree$

In a temperate zone lake, what should the temperature profile be immediately after the fall overturn?

A) coldest water at the top, 4 $\degree$ C water at the bottom
B) warmest water at the top, 4 $\degree$ C water at the bottom
C) 4 $\degree$ C water throughout
D) 10 $\degree$ C water throughout