What characteristic defines the Dorian scale?

The Dorian scale is characterized as a minor scale that features a raised sixth degree. This means that if you consider the natural minor scale, the sixth note is normally a whole step lower. In the case of the Dorian scale, this sixth degree is raised by a half step, creating a unique sound that differentiates it from other minor scales.

The distinctive quality of the Dorian scale allows for a certain blend of minor tonality with a more melodic, brighter feel due to the raised sixth. This scale is quite popular in jazz, funk, and rock music, as well as in certain folk traditions, because it provides a modal quality that can evoke different emotional responses compared to the natural minor scales.

The other options imply different alterations to the scale degrees that do not accurately reflect the defining characteristic of the Dorian scale. Therefore, understanding that the Dorian scale's defining trait is the raised sixth is crucial for recognizing its application and unique sound in musical contexts.