Experienced users of the bezier tool usually use which technique when tracing an image? a. drawing freehand sketches b. drawing a combination of straight and curved lines c. drawing only straight lines d. drawing only curved lines

B. Drawing a combination of straight and curved lines.

Using the Bezier tool, each node is placed precisely and lines are drawn one segment at a time, while the shape of the each curved segment is controlled.  

The tool can be used to create a straight line segment by clicking the mouse button rather than lugging the cursor with a held down mouse button.

The Bezier curve is made by four control points—2 end point handles and 2 direction point handles that enable the artist to design elegant S shapes and loops.