Question about stars!
star distance from earth
alpha centauri 4.2 light years
barnard's star 6.0 light years
sirius 8.9 light years

the table above shows the distances to some of the nearest stars to our solar system. which of the following is true?
i. light from all three stars reaches earth in equal time.
ii. light from all three stars travels at the same speed.
iii. of the three stars, sirius is the farthest from earth.
iv. barnard's star is closer to earth than sirius is.

a. iii and iv only
b. ii, iii, and iv only
c. i and ii only
d. i, ii, iii, and iv