Which of the following is a non-periodic motion as represented by t...

Which of the following is a non-periodic motion as represented by the equation? (ω is any positive constant and \(t\) is time)

A. \(A\sin (\omega t + \phi)\)

B. \(A\cos (\omega t + \phi)\)

C. \(e^{-2\omega t}\)

D. All of these