[单选题]
A 1.53-kg mass hangs ;8sp6gzyzo f4 onftbxs,to*x csn04k 8t0*c /) ov;ry bs a rope wrapped around a frictionless disk pulley of mass 7.07 kg and radius 66.0 cm. What is the angula/ 0 *4x*snrb)x t,tts c0yoo;bvs k8fcr acceleration of the pulley?
A. $4.49 \; rad/s^2$
B. $7.98 \; rad/s^2$
C. $9.87 \; rad/s^2$
D. zero
