Orthographic projection ____.

A. is any projection of the features of an object onto an imaginary plane called a plane of projection
B. is a projection of the features of an object which is made by lines of sight that are perpendicular to the plane of projection
C. is the way in which a circle will be shown in a view as completely round instead of as an ellipse
D. both a and b
E. all of the above


Answer: D

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