Eight persons sit in a row. Four persons face north and the remaining four face south. Three persons sit between A and B, and one of them is seated at...
Question
Eight persons sit in a row. Four persons face north and the remaining four face south. Three persons sit between A and B, and one of them is seated at an end of the row. C sits second to the right of B, who faces north. D and B face the same direction but are not seated next to each other. E sits third to the left of D and faces the opposite direction to D. G sits third to the right of C. Both immediate neighbors of G face the same direction. H sits to the right of F. Which of the following pairs is different from the other four pairs?