Write the next sentence in this paragraph:

How to select a realtor
Learn what credentials a good agent should have.
One designation many agents have is that of realtor. A realtor is a member of the national association of realtors (nar).

Available options: (A). They work with developers and, ultimately, manufacturers of homeowners' home improvement products. Find out if the seller has been in legal trouble. (B). This is a recognized government agency, not a strict federal agency. To qualify as a realtor, you must be a member of the nar's commission. (C). To receive that distinction (it's actually a trademark), an agent must undergo additional training, demonstrate appropriate professional skills, and subscribe to the nar code of ethics. Other designations to look for include : Abr, or accredited buyer's representative. (D). The nar or other registered agents-and agents in some professional organizations-are assessments of a licensed homeowner's agency. The nar or other registered agent of the trade associations typically have a designation like a.
(C).