You will be given a definition of a task first, then some input of the task.
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: Silver City Airways was a private British independent airline formed in 1946. The name Silver City was derived from the eponymous Australian mining town at Broken Hill where The Zinc Corporation was headquartered. Silver City's first commercial flight departed London Heathrow for Sydney via Johannesburg in late 1946.
Question: The document can be classified to which topic?
Options: 1)NaturalPlace, 2)Album, 3)Company, 4)Film
Output:
3