Answer:
A). Dynamic.
Step-by-step explanation:
Characters play a chief role in executing the plot and driving the story forward. Different types of characters like round or flat, static or dynamic, etc. are inculcated throughout the course of the story with each having a distinct part to play.
As per the given description, a character who undergoes a change or transformation in his/her thoughts and actions throughout the course of the narrative is described as 'dynamic' character. Such characters experience a major internal transition that develops and builds the character through the resolution of the conflicts. These characters are crucial to drive the story forward and capture readers' interest towards them. Thus, a character exemplifying dimension of change is described as 'dynamic' character. Hence, option A is the correct answer.