The correct answer is B. Errors and omissions . Architects provide professional services based on specialized knowledge, design skill, technical standards, and regulatory awareness. If an architect fails to account for local bylaws when designing a home, the client may allege professional negligence, error, omission, or failure to meet the expected professional standard of care. Commercial general liability policies usually focus on bodily injury and property damage, not purely professional design errors. Errors and omissions insurance, also called professional liability insurance, is designed to defend and indemnify professionals against claims arising from negligent acts, errors, or omissions in the performance of professional services. Wrap-up liability is project liability coverage for construction participants, but it does not replace the architect’s professional liability policy. Explosion, collapse, and underpinning coverage relates to construction hazards, not design negligence. Commercial building, equipment, and stock coverage is first-party property insurance and would not defend the architect against a client’s lawsuit. Architects must maintain E & O coverage because design mistakes can cause financial loss, construction defects, delay, redesign costs, and litigation. Course topic reference: Liability; Professional Liability; Errors and Omissions; Architects and Design Professionals .

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