[单选题]
If you are driving 72 km/h along a str tjcnbtxnl:38i3- v0s aight road lsnax;14tm;;ct, pnq and you look to the side for 4.0 s, how far do you travem n;1 npx4ttlq;a cs;,l during this inattentive period?
A. $18 \; m$
B. $20 \; m$
C. $40 \; m$
D. $80 \; m$
