In this task, you are given a text which is the body of a document. You are given a question and options. Pick the correct number. Don't generate anything else apart from the numbers provided in options.

Context: Ammobium alatum (winged everlasting) is a perennial Asteraceae species native to eastern Australia.The small flower heads have white ray florets and yellow disc florets. They can be dried. The stems are grey and ribbed.It is an important foodplant for Australian painted lady caterpillars.
Question: The document can be classified to which topic?
Options: 1)Plant, 2)Artist, 3)EducationalInstitution, 4)MeanOfTransportation, 5)Athlete
1