You are presented with the question "What happens before the rigid structure that surrounds the plant cell dilates?" and the following answer choices: 
- It decreases
 - competition
 - air cools
 - relaxation
 - cracking
 - sweating
 - rapid expansion
 - It expands

Now knowing that dilation occurs when cell walls relax and cell wall is the rigid structure that surrounds the plant cell, choose the best answer.


 

    relaxation     