[单选题]
An object moves with a constant sp )g8, *8:3 qjqhbexn4cacb jupeed jfzje 2 bnf2isw.- w1834vf noof 30 m/s on a circular track of radius 150 m. What is the acceleration of the objeb 2wow1fnf832jn zve-s fi .4jct?
A. zero
B. $0.17 \; m/s^2$
C. $5.0 \; m/s^2$
D. $6.0 \; m/s^2$
