Label the parts of this wave. A: B: C: D: - Brainly.com 3 waves are shown with a line through their center. The bottom of the first wave is labeled C. A bracket labeled D connects the bottom of the second and third waves. A line from the center to the top of the first wave is labeled A. The line leading to the top is labeled B. Label the parts of this wave. A: crest B: amplitude C: trough D: