What scale in C major is the Locrian mode represented by?

The Locrian mode is derived from the major scale by starting on the seventh degree of that scale. In the case of C major, the notes are C, D, E, F, G, A, and B. Therefore, the Locrian mode would start on B (the seventh note) and move through the scale of B to B.

This means the B Locrian scale consists of the notes B, C, D, E, F, G, and A, which perfectly aligns with the C major scale, but emphasizes B as the tonal center. This unique characteristic of the Locrian mode, particularly its diminished fifth, gives it a distinctive sound that stands apart from the other modes derived from C major.

Other options do not follow the correct structure of the Locrian mode originating from the C major scale starting on the seventh degree. Thus, the choice representing the scale from B to B is the appropriate answer as it accurately captures the qualities and structure of the Locrian mode in the context of the C major scale.