Two boron compounds are sodium borohydride, $\text{NaBH}_4$, and boron trifluoride, $\text{BF}_3$. What are the molecular shapes of the borohydride ion and the boron trifluoride molecule?
- Aborohydride ion: square planar; boron trifluoride: pyramidal
- Bborohydride ion: square planar; boron trifluoride: trigonal planar
- Cborohydride ion: tetrahedral; boron trifluoride: pyramidal
- Dborohydride ion: tetrahedral; boron trifluoride: trigonal planar