Multiviews by themselves cannot reveal the three-dimensional pictorial configuration of an object or building, according to orthographic projection theory. For pictorial depth expression, the closely related three-dimensional, single-view drawings termed "" and "_" are needed.

A. Orthographic Projection and Oblique Projection
B. Elevations and Plan Views
C. Paralines and Perspectives
D. All of the above answers

Orthographic Projection and Oblique Projection are the closely related three-dimensional, single-view drawings needed for pictorial depth expression in Engineering.

Explanation:

The subject of this question is Engineering. In the field of Engineering, the closely related three-dimensional, single-view drawings that are needed for pictorial depth expression are Orthographic Projection and Oblique Projection. These drawings help to reveal the three-dimensional pictorial configuration of an object or building.

Orthographic Projection is a technique that uses multiple views to represent an object from different angles, while Oblique Projection is a technique that represents an object with a single view but includes a realistic perspective. Both techniques are important in providing a more accurate portrayal of an object's three-dimensional configuration.

For example, when designing a building, architects often use Orthographic Projection to create multiple elevation drawings that show the building from different sides. They may also use Oblique Projection to create a single drawing that combines a realistic perspective with accurate measurements of the building's features.

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