Final answer:
Urban planning codes are not important for ranch sales competency; Stephanie should focus on agricultural zoning, livestock management, and crop rotation relevant to farming and ranching.
Step-by-step explanation:
To become competent in ranch sales, Stephanie, a new sales agent, needs to have specific knowledge in areas directly related to farm and ranch operations and sales. Among the options given, c) Urban planning codes are NOT important for her to have knowledge of to be competent in farm and ranch sales. This is because urban planning is more concerned with the development and design of urban areas and is not directly relevant to the predominantly rural setting of farms and ranches. On the other hand, a) Agricultural zoning regulations, b) Livestock management practices, and d) Crop rotation techniques are all relevant to farming and ranching. Agricultural zoning regulations help determine what land can be used for, while livestock management and crop rotation are key components of effectively running a farm or ranch.