Which scale consists entirely of whole steps?

The Whole Tone Scale is characterized by its unique construction of only whole steps between each note. This scale consists of six different pitches, creating a distinct sound that is unlike other scales that incorporate half steps. The absence of half steps gives the Whole Tone Scale a dreamy and ethereal quality, making it a popular choice among composers seeking to evoke a certain atmosphere in their music.

In contrast, the Chromatic Scale includes all twelve pitches within an octave, incorporating both whole and half steps. The Major Scale is defined by its specific pattern of whole and half steps (whole, whole, half, whole, whole, whole, half), which provides a structure distinct from the Whole Tone Scale. The Natural Minor Scale also follows a different pattern of whole and half steps, creating a sound that is different from that of the Whole Tone Scale.

Thus, the Whole Tone Scale's unique characteristic of consisting entirely of whole steps sets it apart from the other options, confirming it as the correct answer.