Which description is an example of direct characterization?

a. She arose each day at five thirty and practiced her violin in the sunlit attic studio.
b. She was dedicated to her pursuits, and she possessed a raw talent that soon flourished.
c. She climbed the attic stairs and thought, “Today is the day I will master Tchaikovsky.”
d. She called to her mother, “Just ten more minutes, Mom. I need to practice my solo.”