Identify the sentence that has a problem in subject-verb agreement. a. although the company’s new theme is open double quoteexcellence above all, close double quote their best-selling product was just recalled. b. the last lines of the book reveals the true identity of the criminal. c. several of our electronic devices, including our television remote, are powered by rechargeable batteries. d. the application from charles, although not delivered with the others, was received within the deadline.

The correct answer is B. The last lines of the book reveals the true identity of the criminal.

This is incorrect grammar because the subject is plural but the verb is conjugated for a singular subject.

These examples can get pretty tricky, so a good tip is to separate the subject and verb from excess words like appositives and prepositional phrases and then judge whether the grammar is correct or not in a smaller setting.

Hope this helps!

themselves

an intensive pronoun is a pronoun that ends in self or selves, such as himself, herself, themselves, yourself, ourselves. since band members is a third person plural, the correct intensive pronoun would be themselves. if the band was talked about as a collective noun, itself would be the appropriate intensive pronoun. intensive pronouns are used to add emphasis to the noun it's modifying which is why it directly follows it.