Answer: This exemplifies B. learning
Step-by-step explanation:
Learning can be defined as a continuous process of acquiring information , knowledge and skills which changes our behaviour permanently.
Learning is not only a formal setting where we go to school to acquire information but we also learn through experience in which we practically get involved in doing things over time we become even better in doing those things.
As we push our self and get driven to get better at something we will give our all to learn it and as a result we may end up even becoming better than our teachers because we approach something new that we don't know with an empty mind and a drive to make sure that we master it ; this is what is happening with Julian.