Who is referred to as an attorney at law?

An attorney at law is defined as a person who practices law, meaning they are licensed to represent clients, provide legal counsel, and engage in legal proceedings on behalf of their clients. This designation highlights their professional role within the legal system, equipped with the necessary education, training, and certification to operate as a lawyer within a particular jurisdiction.

The other options describe roles or statuses that do not align with the definition of an attorney at law. For instance, the first option refers to someone who may act on behalf of another in a broader sense and does not specify their legal training or authorization. The third option implies a newly licensed individual but does not capture the ongoing practice of law that defines an attorney at law. The last option describes a student of law who has not yet entered into practice and lacks the authorization to represent clients legally. Thus, focusing on professionals actively engaged in legal practice clarifies why the correct choice is a person who practices law.