Answer:
C angle 2
Step-by-step explanation:
Supplementary angles add to 180 degrees (or form a straight line)
The angles that form a straight line line angle 4 are either 2 or 3
The answer is angle 2.
The sum of two supplementary angles is 180 degrees (which is a straight line). If you add angles 4 and 2, it forms a straight line.
I hope this helped! :-)
