Answer: Cait left out several steps in the process of conducting the lab experiment, but she understands what she did wrong and is redoing the experiment.
Explanation: Although all the action are changes a developmental change is specifically; a gradual progress from a starting point to a pre-destined goal or aim.
Cait experienced a change in character which is rapid and doesn't require much processes to be passed through. While the other options experienced gradual step by step improvements, which required patience and time.