Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to keep silverfish away from books naturally [title] Cut some sprigs of thyme. [title] Make sure that the sprigs are dry. [step] They can be fresh but must not be damp.

Ending1: They will rot faster if they dry too quickly. [title] Apply to the sides of books; the edges are the smoothest areas on bookshelves. Ending2: Dry leaves of thyme are heavy and hard to digest and lack the moisture the older plants have. [title] Place a spoonful of thyme food on a glass or a lemon or lime. Ending3: [title] Place the thyme sprigs behind the books on each shelf. [step] Bruise a little to release the scent. Ending4: [title] Sprinkle the thyme over each book and cover. [title] After carving them, let it dry.

Answer format: ending1/ending2/ending3/ending4