A drawing represented in orthographic projection is characterized as what?

Orthographic projection is a method used in technical drawing to represent three-dimensional objects in two dimensions. This approach captures the object's dimensions and geometry without perspective distortion, allowing for precise measurements and clear representations of the object's features.

The essence of orthographic projection lies in its ability to portray different views of an object (typically the top, front, and side) on a flat surface, maintaining accurate proportions and relationships. This ensures that anyone studying the drawing can understand the object's design and dimensions as if viewing the actual object from different angles, but presented in a two-dimensional format.

As a result, stating that orthographic projection is a "2D representation of a 3D object" accurately reflects its purpose and methodology, making it the correct choice.