You are presented with the quiz "What occurs when the encasing of a plant cell relaxes?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "dilation occurs when cell walls relax" and "plant cells are encased by a cell wall". So, what's the best answer to the question?

Select from the following.
[A]. recovery.
[B]. dilation.
[C]. fever.
[D]. shrinkage.
[E]. heat-expansion.
[F]. contraction.
[G]. Exfoliation.
[H]. It expands.
The answer is:
[B].