Sun Corporation paid cash of $60,000 on October 1,2019 for one year's rent in advance and recorded the transaction as an increase to Prepaid Rent. The December 31, 2019 adjusting entry is a) increase Rent Expense and reduce Cash, $30,000. b) increase Prepaid Rent and reduce Rent Expense, $30,000. c) increase Prepaid Rent and reduce Rent Expense, \$15,000. d) increase Rent Expense and reduce Prepaid Rent, \$15,000