The correct answer is C) There are several advantages to having a library card.
The statement that is an effective claim is "There are several advantages to having a library card."
When we are talking about an effective claim, we are referring to a sentence that has to be stated as a fact, although it can be arguable. If it is stated as a fact, the sentence cannot be a feeling or based on personal opinion.
The other sentences of the question are not facts. They include words like "I think" and "should."
