[单选题]
The planet Jupiter ism: qk*j(xyxm.bwev *;t 7x)exw/d+kk $7.78 \times 10^{11} \; m$ from the Sun. How long does it take for Jupiter to orbit once about the Sun? (The distance from the Earth to the Sun is $1.50 \times 10^{11} \; m$.)
A. $1 \; yr$
B. $3 \; yr$
C. $6 \; yr$
D. $12 \; yr$
