Which of the following is a "Must" question type in the MPRE?

The correct choice, "The lawyer must...", represents a "Must" question type in the MPRE because it indicates an obligation or a requirement that lawyers are expected to follow under the rules of professional conduct. This phrasing conveys an absolute duty that attorneys have, leaving no room for discretion or interpretation. For example, lawyers must adhere to confidentiality rules, which are non-negotiable aspects of their professional responsibilities.

In contrast, the other phrases such as "The lawyer may...", "The lawyer should...", and "The lawyer is encouraged to..." suggest varying levels of permissibility or advisory guidance rather than a strict obligation. "May" implies that a lawyer has the option to take certain actions but is not required to do so. "Should" indicates a strong recommendation but allows for exceptions based on circumstances. "Is encouraged to" suggests a preferred course of action, again leaving it to the lawyer’s discretion. Therefore, these choices do not constitute "Must" questions because they lack the mandatory nature inherent in the word "must."