Fill in the blank with the phrase that makes the proof statement true.
Segment AC bisects segment BD. _____________ by the definition of bisector.
A. Segment AB is congruent to segment AD
B. Angle B is congruent to angle D
C. Segment BC is congruent to segment DC
D. Segment AC is congruent to itself
C, Segment BC is congruent to segment DC because a line bisector splits a line into two congruent halves therefore, the two halves, BC and DC are congruent.
