Which of the following describes a survey?

The answer accurately describes a survey as it involves a professional, on-site measurement of the lot lines and dimensions of a property. Surveys are critical in real estate because they provide precise information about the property's boundaries, size, and shape. A survey is often carried out by licensed surveyors who use specialized equipment to ensure accuracy.

Unlike a visual representation, surveys include specific measurements and detailed documentation of property lines that can identify potential encroachments, easements, or other legal issues related to property boundaries. This precision is key for buyers, sellers, and lenders to understand exactly what is included in a property sale and helps resolve any disputes related to property lines.

While other options present concepts related to real estate, they do not capture the technical and measurement-based nature of a survey. For example, a visual representation may illustrate boundaries but lacks the necessary detail and accuracy provided by a formal survey. A legal document outlining property rights refers more to deeds or title documents, and an estimate of property value based on market trends relates to appraisals rather than surveys. Therefore, option B clearly encapsulates the essence and importance of a survey in the real estate context.