In which of the following pairs, the two species are isostructural?

Isostructural species have the same shape/geometry.${\text{SF}}_4$: Seesaw; ${\text{XeF}}_4$: Square planar.${\text{SO}}_3^{2-}$: Pyramidal; ${\text{NO}}_3^{-}$: Trigonal planar.${\text{BF}}_3$: Trigonal planar; ${\text{NF}}_3$: Pyramidal.${\text{BrO}}_3^{-}$: Central $\text{Br}$ has 3 bonds and 1 lone pair $\to$ Pyramidal.${\text{XeO}}_3$: Central $\text{Xe}$ has 3 bonds and 1 lone pair $\to$ Pyramidal.Both ${\text{BrO}}_3^{-}$ and ${\text{XeO}}_3$ are pyramidal.