An astronomical unit is defined to be A the average distance from the Earth to the Moon. B the average distance from the Earth to the Sun. C the average distance from our Sun to the nearest star. D the average distance from our Sun to the closest planet, Mercury.

C

Explanation:it is the average distance between the earth and the and the sun which is about 93million miles or 150 million kilometers. astronomical units are usually use to measure distances within our solar system

i think it’s a. this is because if they measured the mass of something with a mass of 150g, then their final answer would have to be approximately 150g. though all of their answers are almost 150, rosa and tran have the closest answers (or the exact answer) to the accurate one.

v 154.9= 0.9 length length s little over 154.9cm