Final answer:
Augustus fostered professionalism, adapted Roman law, opened the first law school in Rome, and made permanent changes and reforms to the Republic.
Step-by-step explanation:
In the field of jurisprudence, Augustus fostered professionalism, adapted Roman law to be used in the provinces, allowed the first law school to open in Rome, and made changes and reforms of the Republic permanent. Therefore, the correct answer is E) All of these.