Which statement must be true in order for angles A,B,C,& D to be congruent to angles E,F,G,& H (in that order)?

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10 points
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Transversal T must intersect both lines m and n.
Line m must be parallel to line n.
Line m must NOT be parallel to line n.
Angle A must be congruent to angle C.

Line m must be parallel to line n.