ANSWER
Angle PQR
EXPLANATION
We have that PQRS is a scale copy of ABCD.
This means that ABCD was dilated to form PQRS.
What this simply means is that all the sides of PQRS are only larger than those in ABCD by a certain factor.
This also means that all the angles in ABCD are equal with those in PQRS.
In other words, if we observe PQRS, we see that the angle that corresponds with ABC is angle PQR.
