D.
Every dance starts with music.
Music has a beat — a regular sound that keeps time.
When you listen carefully, you can feel the rhythm inside you.
Sometimes the music is fast, and you have to move quickly.
Other times it is slow, and you make big, smooth movements.
Counting the beat — one, two, three, four — helps you stay on time.
When your body follows the rhythm, your dance looks amazing!
