Context: The passage below describes an experiment. Read the passage and then follow the instructions below.

Sam poured 30 milliliters of water into each of six measuring cups. He poured the same volume of apple juice into another six measuring cups. He kept the measuring cups in a freezer for 48 hours. Sam then observed the frozen liquids' volumes in the measuring cups. He measured the amount the volumes increased to see how much the liquids had expanded while freezing. He compared how much the water expanded to how much the apple juice expanded.
Figure: water in a measuring cup.
Identify the question that Sam's experiment can best answer.
A. Does apple juice expand more or less than water when it freezes?
B. Does water freeze more quickly than apple juice?
Answer with the option's letter from the given choices directly.

A