The most accurate answer would be C.
I'm not sure which sentences you are talking about but here are the definitions.
An independent clause is a group of words with a subject and a predicate. It expresses a complete thought and can stand alone as a sentence.
A dependent clause is a group of words with a subject and a verb. These clauses include adverb clauses, adjective clauses and noun clauses.
Answer:
It all started when i met someone who changed my life for the better/worst
Explanation:
<span>a. Argue for or against the limitation of speed limits.</span>
