Which of the following is most likely the distance between the milky way and another galaxy? 22,926 miles 30 million kilometers 10.8 billion light years 19.2 astronomical units

The answer would be 10.8 billion light years

Miles unit should be used to calculate country to country distance since it will be smaller than planet. Million kilometers might be used for the planet to planet distance. One astronomical unit equal to the distance between sun and earth, and it should be used on the planet to planet distance.
To measure galaxy distance, billions of light years would be most appropriate.

It should be a or d i’m not sure