[单选题]
05.27: What is the period mthc/1 8fohfwxe up+9j72/ tf-h,qq ecao+hk:5rk q0 of a simple pendulum if the length of the cord is 67.0 ,qkoqk+a05ceh -: rqh cm and the pendulum bob has a mass of 2.4 kg?
A. 0.259 s
B. 1.63 s
C. .3.86 s
D. 16.3 s
E. 24.3 s
