The correct option is A. Cover letter should expand on the information is a résumé, not simply restate it.
A cover letter is a single-page letter written to the person or organisation offering the job you're applying for. A well-written cover letter should introduce you and encourage the person reading it to read your resume. A cover letter should be personalized and demonstrate that the applicant has done his or her research on the company.
Yes because it has a subject which is both of the candidates and a verb that begins to explain what they are doing or normally do. They radiate confidence on camera.
"Both of the candidates" can be replaced with the word "they" and that may help you when deciding what is considered a complete sentence.
To create parallel structure in the sentence, the phrase that would best replace the words "only to offer dinner" is restaurants that offer only dinner.
A parallel structure means that the same form of words or phrases is used in both sentences or parts of the sentence. So here, the first part of the sentence says "restaurants that offer live music..." and in order for it to be a parallel structure, the other part also has to say "restaurants that offer only dinner."
I usually use Grammarly which is an extension on chrome. It points out incorrect uses in commas and when you misspell words! Stuff like that!