South Dakota requires agency disclosure:

Agency disclosure is a fundamental concept in real estate that protects consumers by ensuring they understand the relationship they have with their real estate agent. In South Dakota, this requirement is particularly important because it establishes clarity and transparency from the earliest stages of a potential transaction. The question tests your knowledge of when this disclosure must occur. Option A (At closing) is incorrect because waiting until closing is too late - the buyer or seller needs this information to make informed decisions about representation. Option C (Only if requested) is incorrect because disclosure is mandatory, not optional. Option D (Never) is clearly wrong as disclosure is required by law. The correct answer is B (Before entering agreement or showing property) because South Dakota, like most states, requires agents to disclose their agency relationship before any substantive discussions about a property or before signing any agreements. This timing ensures clients understand who the agent represents before sharing confidential information or making significant decisions.