Which of the following structures represent meso compound ?

To determine which of the following structures represent a meso compound, we need to understand what a meso compound is.

A meso compound is a molecule that has chiral centers but is achiral as a whole. This means that it has internal symmetry that cancels out the chirality.

To identify a meso compound, we need to look for the presence of chiral centers and determine if the molecule has internal symmetry.

Unfortunately, you have not provided the structures for me to analyze. Please provide the structures so that I can assist you further in identifying the meso compound.