To construct a copy of ∠BAC, the correct choice from the options you provided is:
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 measuring the original angle and replicating it at a new point, ensuring that the angle ∠BAC is accurately copied.