Q: In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").
Freezing point refers to: (A) the temperature below which gas turns to liquid (B) the temperature above which liquid stops being liquid (C) the temperature below which solid turns to liquid (D) the temperature below which liquid stops being liquid
A:
D