[单选题]
Water runs out of a horizontal drainpipe ,s)i:+..yehg wfj exnat the rate of 120 kg per mind ;xq-7e fqqvok6r+, bute. It falls 3.20 m to the ground. Assuming the water doesn't splash up;+6 -,vqfro7q b qedxk, what average force does it exert on the ground?
A. $6.20 \; N$
B. $12.0 \; N$
C. $15.8 \; N$
D. $19.6 \; N$
