From the cosmic background radiation, what can scientist infer that the universe was like after the big bang a. very small b. hot c. the same average temperature as it is today d. cooler than it is today

if you look up in the top right corner you'll see your current profile picture, click than click "view profile" you'll be able to change it there.

ask your friends for what they got then copy it down if you don't have any friends which is fine than google it or pay the teacher