[单选题]
A wheel of diameter of 68.0 cmrw* 7i48 dua r,qgwcv5,eu)o b slows down qz gr:f*)s8znuniformly from 8.40 m/s to rest over a distance of 115 m. How long does it take for the when gz)zfsr*q:8 el to come to the stop?
A. $24.7 \; s$
B. $27.4 \; s$
C. $42.7 \; s$
D. $47.2 \; s$
