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.
Q: Context: Acacia coolgardiensis commonly known as Sugar Brother or Spinifex Wattle is a shrub in the family Fabaceae. Endemic to Western Australia it is widely distributed in the semi-arid spinifex country from Carnarvon to Kalgoorlie.Sugar brother grows to a height of about three metres. It nearly always has multiple stems. Like most Acacia species it has phyllodes rather than true leaves. These are green and may be up to 10 centimetres long and about three millimetres wide.
Question: The document can be classified to which topic?
Options: 1)Building, 2)Animal, 3)Village, 4)Plant, 5)EducationalInstitution
A:
4