On May 1, 2007 Giltus Advertising Company received $1500 from Julie Bee for advertising services to be completed April 30, 2008. The cash receipt was recorded as unearned fees and at December 31, 2007, $1000 of the fees had been earned. The adjusting entry on December 21 year 1 should include:
A. A debit to uearned fees for $500
B. A credit to unearned fees for $500
C. A credit to earned fees for $1000
D. A debit to earned fees for $1000
E. A debit to earned fees for $500