What is the supplement of an angle that measures 77°? (1 point)

The supplement of the angle is 77° because supplementary
angles are congruent.

The supplement of the angle is 13" because 90° - 77° = 13".

The supplement of the angle is -103° because 77 - 180 = -103"

The supplement is 103 because 180 - 77° = 103°
A,B,C or D?