Final answer:
The correct answer is option B, which states that there is only one guitarist in the band named Reverse-Flash who wants a solo. This conclusion is drawn from the use of singular nouns in the sentence.
Step-by-step explanation:
The sentence "The guitarist in my band, Reverse-Flash, wants to have a solo at our next concert" provides specific information about the desires of a guitarist. Based on the sentence, we can infer certain details about the number of guitarists desiring a solo in the given context. The sentence utilizes the definite article 'the,' which signifies that it is referring to a specific individual. Therefore, the correct option based on the information provided in the sentence is option B: There is only one guitarist in my band, Reverse-Flash, who wants a solo. This is because the sentence uses singular nouns that indicate a singular subject, 'the guitarist,' who is part of the band called 'Reverse-Flash' and expresses a desire to have a solo performance at the next concert.