I believe it's A. That's considering the the words they used and the listing format.
The sentence that has a correct subject-verb agreement is:
A) My cousin, along with two friends, is arriving today.
<span>Explanation: The words ‘along with, besides, as well as, not, etc.’ separates the subject from the verb. These words are not a part of the subject. These words should be ignored. A singular verb should be used if the subject singular.</span>
A independent clause is a part of the sentence that can stand alone and a dependent one can’t it depends on the independent statement so for number one the dependent clause would be that he would be appointed the independent clause would be the manager is certain
It’s A, the narrator is being persuasive.
If you are referring to the story I think you are referring to then the answer is C.