The correct answer is "bookstore."
Explanation:
1. A "librería" is a Spanish word that translates to "bookstore" in English.
2. In the context of the sentence provided, the phrase "Los compras en una librería" means "You buy them at a bookstore."
3. A bookstore is a place where you can purchase books, magazines, stationery, and sometimes other related items.
4. Libraries are different from bookstores as libraries lend books for free, whereas bookstores sell books for a price.
5. The other options presented—library, market, and wallet—do not fit the context of buying items like books, making "bookstore" the most appropriate answer.
