Which of the following correctly represents the Circle of 5ths order of flats?

The Circle of 5ths is a vital music theory concept that organizes the keys of music in relation to their sharps and flats. In the order of flats, the keys are introduced starting from C major (which has no flats or sharps) and proceed clockwise through the keys that progressively add flats.

The correct sequence begins with C major, followed by F major, which introduces one flat (B flat), then B flat major with two flats (B flat and E flat), continuing to E flat major (three flats: B flat, E flat, and A flat), A flat major (four flats: B flat, E flat, A flat, and D flat), D flat major (five flats: B flat, E flat, A flat, D flat, and G flat), finally arriving at G flat major, which has six flats.

In contrast, other options present sequences that either include keys in a different order or incorporate sharps that do not align with the order of flats. Thus, the answer outlining the order as C, F, B flat, E flat, A flat, D flat, G flat accurately follows the structure of flat keys in the Circle of 5ths, making it the correct choice.