[单选题]
The closest star to ou c5wy0cij 4rh)r su,f42 fpl-v rjr 0 ildg(2g7moolar system is Alpha Centauri, which is 4.30 light years away. A spaceship with a constant speed of 0.800c,gf(rm 7p4g2- dfol2 uijlr0v relative to the Earth travels toward the star. How much time would elapse on a clock on board the spaceship?
A. $3.23 \; y$
B. $4.40 \; y$
C. $5.15 \; y$
D. $5.38 \; y$
Post time 2024-1-14 16:03:04