Answer:
c) the distance a star is from Earth affects how bright it appears in the night sky.
Step-by-step explanation:
a) there are MUCH bigger stars in the universe then the sun. The sun is said to be a medium star.
b) If the sun were to burn out it would affect earth a lot. The sun is needed for Earth's survival. Earth needs the heat from the sun or it'd a big cold planet full of ice that probably couldn't support life.
d) the big bang theory supports that the universe is growing
I know c), is correct