A round,
character is one who changes and grows as a result of the conflict in the story.

Dynamic.

Explanation:

A play can be defined as a literary work that presents the dialogue between characters, as well as portrayal of fictional and non-fictional events in a theater.

In a play, a character list comprises of both protagonists and antagonists that are featured in a play. A protagonist is the lead, principal or chief (main) character in a story, play or film. Thus, a protagonist refers to the character that is being closely followed by an audience or a reader in order to determine the character's fate at the end of the story or play. An antagonist is a character that opposes the protagonist.

In Literature, character development can be defined as a literary process or technique in which a writer portrays people as being real or believable in a work of fiction by ascribing depth (details) and personality to them.

Basically, various writers or authors use character development to make the audience or readers learn so much more about the characters as they develop in the story.

A round, dynamic character is one who changes and grows as a result of the conflict in the story.

However, a flat, static character is one who stays the same (do not change) even if conflict arises in a story.

"a" because he is appealing to logic as oppose to appealing to the audience's emotions.