Each chiral center in a meso compound will always have opposing absolute configurations. As a result, a meso compound will always have an (R,S) or (S,R) configuration but never an (R,R) or (S,S). Why?

A meso compound will always have a (R,S) or (S,R) configuration because its highest priority groups are always on the same side of a specific plane.

A meso compound will always have an (R,S) or (S,R) configuration because it has identical substituents attached at every chiral center.

A meso compound will always have an (R,S) or (S,R) configuration because it has two achiral centers.

A meso compound will always have an (R,S) or (S,R) configuration because its chiral centers are adjacent to each other.