[单选题]
A jumper in the long-j.,xa kehh 1uui;;m7iqump goes into the jump q6itnoft.vm z. t5l:0 with a speed of 12 m/s at an angle oz i.m. q0t6v fntl:t5of $20^{\circ}$ above the horizontal. How far does the jumper jump?
A. $6.14 \; m$
B. $8.22 \; m$
C. $9.45 \; m$
D. $10.4 \; m$
E. $12.28 \; m$