Using the Accrual Basis,which One of the Following Entries Would $\quad$

Using the accrual basis,which one of the following entries would properly record Canon's revenue recognition for October?

A) DR Cash $\quad$$\quad$ 40,000
CR Copier sales $\quad$$\quad$ 40,000
B) DR Cash $\quad$ 16,000
CR Copier sales $\quad$ 16,000
C) DR Cash $\quad$$\quad$ 16,000
DR Accounts receivable $\quad$$\quad$ 24,000
CR Copier sales $\quad$$\quad$ 40,000
D) DR Accounts receivable $\quad$ 40,000
CR Copier sales $\quad$ 40,000