The distance between the highest and lowest tones of a melody is called the: a. Tempo b. Tonic c. Phrase d. Range

The correct answer is d. Range.The distance between the highest and lowest tones of a melody is called the range. The range of a melody refers to the span of pitches that the melody covers, from the lowest note to the highest note. It is a measure of the extent of the pitch variation within a musical piece or a specific section of it.Tempo refers to the speed or pace of a musical piece, indicating how fast or slow the music is played. Tonic is the first note of a scale or the home note of a piece of music, providing a sense of resolution and stability. Phrase refers to a group of notes that form a coherent musical idea or a unit within a larger musical structure.Therefore, the correct answer is d. Range.