Final answer:
Without specific information about the quadrilaterals APQR and ASTU, it's not possible to determine if they are congruent, so the answer is B. Might not be congruent.
Step-by-step explanation:
When assessing whether two geometric shapes are congruent, we typically use specific congruence postulates or theorems. The congruence of quadrilaterals APQR and ASTU has to be determined through a congruence postulate. However, since we do not have specific information about the sides or angles of these quadrilaterals, we cannot definitively conclude that they are congruent without additional information. Hence, the answer would be B. Might not be congruent, as we do not have enough information to apply any of the other congruence postulates like Congruent SSS, Congruent ASA, or Congruent SAS.