Kadra needs to watch where she's walking.
Also, that second comma should come after the Quotation to avoid syntax errors.
"Ouch, that hurts!", Kadra said after stubbing her toe.
It is all capitalized making it seem like the writer is shouting at us
The answer is D Cats are the smartest animals.
Getting older objectively only has to do with chronological age. Growing up is more of a subjective term because it could mean an increase in age, an increase in maturity, or a change of personality.
I hope this helps.