It seems to me that the answer should be 2. Rhythm and meter provide a beat.
"Et al" would be the Latin phrase that is used with the primary author's name when a book has more than three authors, the reason why this Latin phrase is used is because this means "and others" that refers to the other authors that wrote the book.
DescriptionDéjà vu is the feeling that one has lived through the present situation before. The phrase translates literally as "already seen". Although some interpret déjà vu in a paranormal context, mainstream scientific approaches reject the explanation of déjà vu as "precognition" or "prophecy". #answerwithquality #BAL