Answer:
All of the above
Explanation:
Supplementary means two angles that add up to 180 degrees.
now, since all of the angles are beside each other, it's automatic that they add up to 180 degrees.
I'm guessing you are learning about transversals and rules on lines.
I did this ixl as well and I understand why you're confused
based on my guessing on what you are learning in school, 4 and 5 would also be supplementary because they are consecutive interior angles
I don't know if you learned this term but that's the best I can explain it.