Please choose the correct answer to the question: The smallest known species of cactus, called Blossfeldia Liliputana, is named after

Answer1: The Hobbit characters by J. R. R. Tolkien Answer2: a fictional island in Gulliver's Travels by Jonathan Swift Answer3: Frodo Baggins from Lord of the Rings Answer4: Bilbo Baggins from Lord of the Rings

Answer format: answer1/answer2/answer3/answer4