[单选题]
A girl throws a rock h ,ujvodc8ry :o4cf1 *morizontally, with 7fu1/aec oho4,c u4ab a velocity of 10 m/s, from a bridge. It falls 20 m to the water baubeao4 coc7u f/h4, 1elow. How far does the rock travel horizontally before striking the water?
A. $12.12 \; m$
B. $16.16 \; m$
C. $20.2 \; m$
D. $24.24 \; m$