A company purchased equipment for $50,000 on 1 January 2009. It is depreciating the equipment over a period of 10 years on a straight-line basis for accounting purposes, but for tax purposes, it is using the declining balance method at a rate of 20%. Given a tax rate of 30%, the deferred tax liability as at the end of 2011 is closest to:

A.$420.

B.$2,820.

C.$6,720.