To show that \( \overline{NO} \) is a constructed copy of \( \overline{PQ} \), Thuy must measure the length of segment \( \overline{PQ} \) from point \( P \) to point \( Q \) using a compass and then see if the distance from point \( N \) to point \( O \) is the same by placing the compass on point \( N \).
The correct response would thus be:
She must measure the distance from point \( P \) to point \( Q \) using a compass and place the compass on point \( N \) to see if point \( O \) is the same distance.
(Note: The options you provided seem to be slightly off. The correct format should indicate measuring the distance from \( P \) to \( Q \). Please verify if there are options directly corresponding to this clarification.)