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: The Blue Cross Blue Shield Tower (BCBS) is located on the north end of Grant Park along E. Randolph Street at the NE corner of Randolph and Columbus Drive in Chicago Illinois United States of America. It is home to the headquarters of Health Care Service Corporation. The building's address is 300 E. Randolph. The building is located next to the Aon Center and original plans hoped to connect the two buildings via an underground pedway but the plans never came to fruition.
Question: The document can be classified to which topic?
Options: 1)Film, 2)Village, 3)Company, 4)Building
4