SU and VX are parallel lines

Answer:
The answer to your question is: the last option is correct
Step-by-step explanation:
Alternate interior angles are a pair of angles located in the inner side of two parallel lines but these angles are opposite to a transversal line.
∠STW and ∠XWY are supplementary angles
∠STW and ∠VWT are supplementary angles
∠STW and ∠STR are supplementary angles
∠STW and ∠XWT are alternate interior angles