Answer:
Since you didn't put the actual passage here, I will answer the question to the best of my ability.
Explanation:
1: The "new" bookstores stock only books to satisfy a variety of customers.
If this is the right answer, then the passage was talking about how the newer bookstores have books that would make a large group of customers content.
2: Most traditional bookstores sell books.
If this is the answer, then the passage was talking about how the old, traditional bookstores only sold books.
3: The nontraditional bookstore serves the many desires of its diverse clientele.
If this is the answer, then the passage was talking about how the newer or nontraditional bookstores didn't just sell books, but also merchandise or toys as well.
4: Courteous, well-informed store clerks eagerly answer questions.
If this is the answer, then the passage was about how the employees at bookstores happily answer customer questions about books.
Now go back to the passage and see which answer best fits the description!