A Compact Disc of a CD Player Has a Moment $\times$

Multiple Choice

A compact disc of a CD player has a moment of inertia I = 2.5 $\times$ 10^-5 kg · m² and rotates at 500 rev/min.Taking L = I $\omega$ and using the quantization of angular momentum,the approximate value of L is ( = 1.055 $\times$ 10^-34 J · s)

A) 1.2 $\times$ 10³²
B) 2.0 $\times$ 10³⁰
C) 1.2 $\times$ 10³¹
D) 130
E) 3.5 $\times$ 10¹⁵