Given that
[tex]\vec{YA}\text{ bisesects}\angle XYZ[/tex]Then,
[tex]\begin{gathered} \angle XYA\text{ and }\angle ZYA\text{ each measure 63degr}ees \\ \angle XYA\cong\angle ZYA \\ \text{ The total measure of }\angle XYA\text{ and }\angle ZYA\text{ }is\text{ }63+63=126^{\text{0}} \end{gathered}[/tex]Therefore, the statement
[tex]\begin{gathered} \bar{YX}\cong\bar{YZ}\text{ is false} \\ The\text{ answer is Option A} \end{gathered}[/tex]