Answer:
A. personality
Step-by-step explanation:
Personality development: Personality development is defined as a well-defined pattern of attitude, behavior and behavior development that constructs an individual distinctive. It happens with the interaction of character, temperament, and environment. It reflects the individuality of a particular person. It also helps in improving the quality of life, self-discipline, potential, and professional skills.
In the question above, the researcher who is developing the study is most likely interested in personality development.