A is the most clear and sensible answer
The answer is E
A, B, and D are singular instead of plural.
C is repeating the same words from the beginning of the statement which creates unneccessary repetitiveness.
Answer:
"...a Swedish astronomer..." renames "Samantha Bernard"
Explanation:
REASON 1 - Writing an outline is a great way to harness thoughts and ideas into an actual piece of writing
REASON 2 - organization is such an important skill to learn and writing an outline helps with that. Bering able to catagorize thoughts is something you will use throughout your life!