Answer:
This answer would be correct.
Explanation:
By using context clues within this sentence, we can infer that this response in correct. Seeing that the definition of dynamic can be used as an adjective and a noun:
Adj. (of a process or system) characterized by constant change, activity, or progress.
Noun: a force that stimulates change or progress within a system or process.
We can see that even in different parts of speech, the word essentially means <em>to carry some kind of change</em>. Therefore, a dynamic character, does undergo constant change throughout a story.