Correct Answer:
C. Change in behavior
Learning is fundamentally defined as a relatively permanent change in an individual's behavior or potential behavior that results from experience. This change can be cognitive, affective, or psychomotor. Option A, 'Curriculum change,' refers to modifications in educational plans, not the act of learning itself. Option B, 'Teaching process,' describes the methods used to facilitate learning, but it is not the outcome of learning. Therefore, the most accurate definition among the choices is 'Change in behavior,' reflecting the observable or measurable impact of learning on an individual.