How many half steps are there from C to D?

To determine the number of half steps from C to D, we should first understand the concept of half steps within the context of music theory. A half step is the smallest interval in Western music, typically the distance between two adjacent notes on a piano keyboard or guitar fretboard.

Starting at C, the note immediately following it in the chromatic scale is C# (or Db), which counts as one half step. Continuing from C# to D, we have another half step. Therefore, moving from C to C# counts as one half step, and moving from C# to D counts as another half step, resulting in a total of two half steps.

This interval can also be confirmed by counting the notes: C is the first, C# is the second, and D is the third note, which reinforces that moving from C to D encompasses two half steps. Thus, the distance from C to D is accurately represented by two half steps, indicating that the answer is indeed the correct choice.