Which equation can be used to find the measure of an angle that is supplementary to ∠

A m∠EOF + m∠FOA = 180 %DegreeSign%
B m∠EOF + m∠EOD = 180 %DegreeSign%
C m∠EOF + m∠FOB = 180 %DegreeSign%
D m∠EOF + m∠COB = 180 %DegreeSign%