If only one of these options could be true, which one would it be?

• A. This option has the same truth value as D. (91 votes, 41%)
  
• B. A correct option is adjacent to this option. (37 votes, 17%)
  
• C. This option has a different truth value than B. (39 votes, 18%)
  
• D. It would not be possible for exactly two of these options to be true. (54 votes, 24%)