4. Light-years are used to measure distances in space. What does it mean when two stars are 150 light- years apart?
A. The stars are 150 million kilometers from each other.
B. One of the stars formed 150 years before the other star.
C. It takes 150 years for light to travel from one star to the other.
D. It would take 150 years for a spaceship to travel between the stars.

C

Explanation:

the answer is C because that's what light year means

The units used to measure stellar distance are the light-year, the distance light travels in 1 year, and the parsec (pc), the distance of a star with a parallax of 1 arcsecond (1 parsec = 3.26 light-years). The closest star, a red dwarf, is over 1 parsec away.

Explanation:

answer; ///i do believe that the correct answer is (b); ///particle composed of two or more atoms bonded together;