Answer :
The easiest drawing of an orthographic projection is the orthographic drawing, which is a precise and easy-to-understand form of technical drawing. The correct option is 3) orthographic.
Orthographic projections involve viewing an object from different sides and creating separate flat views of each face of the object, such as the front view, top view, and side view. This method of drawing is straightforward because it eliminates the distortion that perspective or isometric drawings introduce, representing the object's dimensions without any alterations.
Orthographic drawing is a fundamental skill in technical drawing and engineering, as it allows for accurate and scaled representations of object dimensions. In an orthographic projection, construction lines are often used to ensure that all views align correctly and are proportionate, making the orthographic method the most precise and easy-to-understand form of technical drawing. The correct option is 3) orthographic.