Star X is larger than star Y. Star Y is larger than star X. Star X reflects the Sun’s light better than star Y. Star Y reflects the Sun’s light better than star X.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: An astronomer is studying two stars that are the same distance from Earth. Star X appears brighter than star Y. Which statement best explains this observation?
Possibilities:
- Star X is larger than star Y.
- Star Y is larger than star X.
- Star X reflects the Sun’s light better than star Y.
- Star Y reflects the Sun’s light better than star X.

Star X is larger than star Y.