which statement accurately describes a light - year?\nit is the shape of a galaxy.\nit is the distance that…

which statement accurately describes a light - year?\nit is the shape of a galaxy.\nit is the distance that light travels in a year.\nit is a yearly measurement of light given off by stars.\nit is the amount of time it takes light to travel one million kilometers.
Answer
Brief Explanations:
A light - year is a unit of distance. It represents the distance that light travels in one year in a vacuum. The other options misinterpret the concept as a shape, a measurement of light emission, or a time for a certain distance traveled by light.
Answer:
It is the distance that light travels in a year.