Triangle $\Delta {YWX}$ is shown.

Given: $\overline{\overline{W Y}} \cong \overline{\overline{W X}},: \overline{\overline{Z Y}} \cong \overline{\overline{Z X}}$

Prove: $\overline{\overline{W Z}}$ bisects $<Y {WX}$

Choose the correct statements and reasons in the blank box to complete the proof.