[单选题]
A jumper in the longl:c jgwy+27k lui(,dp -mb ygygn1)o7(*z e6p.o3 pown jump goes into the jump with a speed of 12 m/s at an angle n1o6w7zm*y e)3 np gog .yp(boof $20^{\circ}$ 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. $12.28 \; m$