Abdulla, Co $\begin{array} { l l l } \text { Oct. } 01 &\text { Cash } & 15,000\\&\text { Rent Revenue Earned} && 15,000 \end{array}$

Essay

Abdulla, Co. collected 6-months' rent in advance from a tenant on October 1 of the current year. When it collected the cash, it recorded the following entry:
$\begin{array} { l l l } \text { Oct. } 01 &\text { Cash } & 15,000\\&\text { Rent Revenue Earned} && 15,000 \end{array}$
Assuming Abdulla only prepares adjustments at year-end, prepare the required adjusting entry at December 31 of the current year.