Answer:
Arnold is a born librarian, he loves books.
Explanation:
When connecting two independent clauses (clauses with a subject and verb that can stand alone), you need to use a conjunction or a semicolon like in the third sentence. This one has the comma, but neither of those, <u><em>so</em></u> it is incorrect. (see what I did there? I used a conjunction to connect my two independent clauses! B) )
Hope this helps! Happy learning, friend!
It is a compound sentence, because this sentence consists of two independent clauses ('the lamp fell over' and '(the lamp) scared the cat"). Simple sentence would have only one independent clause.
Did you have any answer choices or was it free response?
free response: He should read more carefully and take notes on the important details.