To copy angle \( \angle BAC \), you need to use the process of constructing equal angles with arcs. Based on the responses provided, the most accurate option for this construction would be:
Using a compass, measure the distance from point Q to point B. Then, make another arc by placing the pointed end of the compass on point Q and draw a small arc that intersects with the larger arc above point P.
This method involves using a compass to ensure the two angles are congruent by replicating the arc distance from the vertex of the original angle.