Study the proof given. list the reasons for items 2,3, & 4. right the number and then the answer.

Given that B is the midpoint of line AC and line BC is congruent to line DE.

The following statements and reasons, proves that line AB is congruent to line DE.

     Statement                                                   Reasons

1.  B is the midpoint of line AC                        Given
2.  Line AB is congruent to line BC.                 Midpoint of a line segment
3.  Line BC is congruent to line DE                  Given
4.  Line AB is congruent to line DE                  Transitive property