The correct answer is move in waves.
A. move in waves
B. shake violently
D. become nauseous
The correct answer is (A) To move in waves; to have or cause a smooth, wavelike or sinuous motion or form; to move with a smooth rising and falling, or side-to-side motion; to have a wavy form.
Undulate comes from Latin unda (wave)
Examples of use:
- The flag undulated in the breeze above the clubhouse.
- A snake undulated across the grass a few feet away while they spoke.