[单选题]
A runner ran the marathon (approximately 42.0 km) in 2 hou: bqd bwvfl7ew(-. l,ozv2/cjoc5xa9rs ang*p zz+j 1u+sqfrid/7d 57 min. What is the average speed of the 71 zzgqj rd/f*ip +u+srunner in m/s?
A. $14.2 \times 10^{3} \; m/s$
B. 124 m/s
C. 3.95 m/s
D. 14.2 m/s
