The correct answer is D. Effects of exclusions and restrictions not explained because one of the most common causes of an Errors & Omissions (E & O. claim against a broker is the failure to properly advise, explain, and document material coverage limitations . If a client later suffers a loss and discovers that an exclusion, restriction, or limitation applies that was not clearly explained, the client may allege that the broker failed in their professional duty.
From a RIBO perspective, brokers are expected to act with competence, professionalism, and care when placing or renewing coverage. That includes helping the client understand not only what is covered, but also what is not covered. Exclusions, conditions, warranties, sublimits, occupancy rules, vacancy rules, or endorsements that restrict coverage are all matters that should be explained where relevant. Clear file notes and written communication are essential E & O protection.
A). is not, by itself, an E & O claim trigger; premium increases at renewal are common market or underwriting outcomes. B. and C. may involve compliance or administrative issues, but they are not the classic client-loss scenario that leads to an E & O allegation. The real E & O exposure arises when the client says: "I was not told this loss would not be covered." That is why failure to explain exclusions and restrictions is the best answer.