Identify whether a meso compound is a possible stereoisomer of the following compounds.
a. hexane-2,4-diol
b. heptane-2,6-diol

• A. a. Does not have a meso compound.
  b. Has a meso compound.
• B. a. Has a meso compound.
  b. Has a meso compound.
• C. a. Does not have a meso compound.
  b. Does not have a meso compound.
• D. a. Has a meso compound.
  b. Does not have a meso compound.

Answer: (A)