When a character exhibits one primary trait throughout a story, what type of character is he or she?

***a. static - dramatic character who undergoes little to no inner change; a character that doesn't grow or develop.
b. main - i'm assuming it's meaning main idea, but i could be wrong.
c. dynamic - constant change or motion.
d. stock - stereotypical character whom audiences recognize from frequent recurrences in a particular literary tradition.

so the correct answer to the question would be a.

A). Static - Dramatic character who undergoes little to no inner change; a character that doesn't grow or develop.

Explanation:

Characters play a significant role in driving the plot and convey the intended content of the author to the audience. A story involves varied types of characters like the protagonist and antagonist, static or dynamic, round characters, etc. with each having a part to play in conveying the meaning of the story.

As per the question, a character exhibiting one principal trait throughout the course of the story would be categorized as 'static character' as such character is not subject to change. Static characters are those characters who experience a little or no change in their perspectives and do not evolve or grow as the story progresses contrary to dynamic characters experiences a crucial transition and undergoes a major change. Thus, option A is the correct answer.

a. the scene is structured as a dialogue between two characters in their own informal language.