Students who want to work as lawyers apply for the law major. Mao Ning has applied for the law major, and he must want to work as a lawyer. Which of the following is true and best supports this view? ['All candidates for the legal profession want to work as lawyers.', 'Some lawyers are university graduates in law.', 'Some people who want to work as lawyers have applied for a law major.', 'Many lawyers have a degree in law.']