Question

Give the reason for the step taken from a proof.

<1 is the supplement of <2---->Given
<3 is the supplement of <4---->Given
<2 = <4----------------------->Given
<1 = <3----------------------->?

a. linear pair postulate
b. congruent supplements theorem
c. congruent complements theorem
d. vertical angles theorem

when i use the = sign it it supposed to be the "is congruent to" sign. Just add a squiggly line above it to get a better picture of it