One observation that supports the Big Bang theory is that the distance between our galaxy and others has changed over time
The Big Bang theory proposes after the Big Bang or great explotion the universe formed through expansion. Moreover, expansion is still happening.
On the other hand, the static model proposes the universe is not expanding but it is rather static.
A key observation is that the distance between our galaxy and others has changed, which proves the universe is expanding.
Note: This question is incomplete because the options are missing; due to this, the answer is based on general knowledge.
Learn more about universe in: https://brainly.com/question/11987268
#SPJ1