The correct statement about

 All B-H-B angles are of $120^{\circ}$.

Its fragment, $\mathrm{BH}_{3}$, behaves as a Lewis base.

Terminal B-H bonds have less p-character when compared to bridging bonds.

 The two $\mathrm{B}-\mathrm{H}-\mathrm{B}$ bonds are not of same length.