Given the task definition and input, reply with output. 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: Rothmaleria is a genus of flowering plants in the daisy family.
Question: The document can be classified to which topic? 
Options: 1)EducationalInstitution, 2)OfficeHolder, 3)Film, 4)Plant

4