On October 1, Goodwell Company rented warehouse space to a tenant for $3,400 per month and received $17,000 for five months rent in advance on that date. The collection was credited to the Unearned Rent account. The companys annual accounting period ends on December 31. The Unearned Rent account balance at the end of December, after adjustment, should be: $3,400. $6,800. $10,200. $13,600. $17,000.