A.\(v =  - A\omega {\rm{sin}}(\omega t + \varphi )\)
B.\(v =  - A\omega \cos (\omega t + \varphi )\)
C.\(v = A{\omega ^2}\sin (\omega t + \varphi )\)
D.\(v = A\omega \cos (\omega t + \varphi )\)