Each reference point should be described with corresponding_distance and bearings_ from station and BLLMs.

• A. Distance and bearings
• B. Control points and baseline length
• C. Distance and control points
• D. Control points and reference height

Answer: (A)

In surveying, locating a reference point relies on polar coordinates relative to known references. The essential data are the distance to the point and the bearing from the reference. Together, distance and bearing uniquely define where the point sits on the plane. When you describe a point from both a station and a BLLM, you’re using those same two pieces of information from each reference to pin down the location precisely.

Describing a point with distance and bearing is fundamental because distance tells you how far away it is, and bearing tells you the direction to look. The other options bring in concepts like control points, baseline length, or height, which describe relationships or vertical attributes rather than the horizontal location from the references. Hence, distance and bearings best capture how to describe the reference point’s position.