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The persuasive technique is appealing to credibility or character in a form of a status upgrade of the wearer. If the advertisement suggests that your friend will get impressed by wearing this certain clothing brand, it implies that you have a nice taste and you have such appealing prestige to your friends and get their approval from it.
B: to provide several possible anwser
An independent clause and a dependent clause.
An independent clause is a clause that can stand alone as a sentence (i.e., it expresses a complete thought). However, a dependent clause (or subordinate clause) is one that cannot stand alone as a complete sentence because it does not express a complete thought. Cause it is not a complete thought, it is dependent on being attached to an independent clause to form a sentence. The link between a dependent clause and an independent clause will often be a subordinating conjunction or a relative pronoun.