Four couples—the Potters, the Regans, the Stewarts, the Wilsons—are seated evenly spaced about a circular table.
The Regans do not sit next to the Stewarts.
The Stewarts sit next to each other.
Mr. Potter sits directly opposite Mr. Wilson.
If Mrs. Potter sits to the left of Mr. Stewart, then which one of the following is a complete and accurate list of the people any one of whom could sit next to Mr. Potter?