I believe it’s a because the author specifically uses you, which calls the audience to act. hope this helped!
There is only one sentence among these that contains a dependent clause, and that is the third option - Although the rain poured down, the Eagles and Panthers continued their soccer game.
The remaining sentences are all simple, meaning they contain only one independent clause (except for sentence 2, which is compound, meaning it has 2 independent clauses).
If it is the one that says
Edith: Outspoken
then the answer is
Otto: Peaceful
“ teens need adequate sleep and REM sleep to rebuild long term memory for learning and , focus attention for driving and maintaining health and fighting obesity.”
