[单选题]
The closest star to our solar system is Alpha Centauri, which i*b0p5v z vyvjsz+vs7 +* -;86y bt2jqbozheqvs 4)iyj7v7n 3owv r z+-ru.30 light years away. A spaceship with a constant vuin3j-7v r+worz)y7 speed 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. $5.38 \; y$
Post time 2024-1-14 16:03:04