Which Theorem accurately completes Reason A?
A) Alternate Interior Angles Theorem
B) Corresponding Angles Theorem
C) Alternate Exterior Angles Theorem
D) Same-Side Interior Angles Theorem

I believe that it would answer D) same side interior angles.

Same side interior angles or consecutive angle always add up to 180 degrees

A cannot be because the angles that the diagram is telling us are not alternate interior angles, alternate interior angles would be angle UQR and angle QRZ

B cannot be because they are not corresponding and also they are not Alternate Exterior angles. Which left us with D.

Hope this help!! :

Cthe residual plot for model 1 has a non random pattern and is a good fit for the data

Least to greatest : -10, -3, 5, 16