Fact 1: Dilation occurs when cell walls relax.

Fact 2: Plant cells are encased by a cell wall.

Given the two facts above, answer the question "What occurs when the encasing of a plant cell relaxes?" with the following options: 
- recovery
 - dilation
 - fever
 - shrinkage
 - heat-expansion
 - contraction
 - Exfoliation
 - It expands


 

  dilation       