What is the missing step in the given proof?
a.
pqc and zacp are supplementary by the linear pair theorem.
b.
for parallel lines cut by a transversal, corresponding angles are congruent, so zacb poq
c.
zocp - zbcd by the vertical angles theorem.
d.
for parallel lines cut by a transversal, corresponding angles are congruent, so 20cp
abc
e.
for parallel lines cut by a transversal, corresponding angles are congruent so zoca
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