[单选题]
The closest star to our solaro7*6vn qqbh m;f-s)ut system is Alpha Centauri, which is 4.30 liab7 y2,aop (vught years away. A spaceship with a constant sp2ayvu o,(p7 baeed of 0.800c relative to the Earth travels toward the star. How much time would elapse on a clock on the Earth?
A. $3.23 \; y$
B. $4.40 \; y$
C. $5.15 \; y$
D. $5.38 \; y$