Acme, Inc.'s books show an ending cash balance of $20,000 before preparing the bank reconciliation. Given the bank reconciliation shows outstanding checks of $5,000, deposits in transit of $4,000, NSF check of $300, and interest earned on the bank account of $210, the company's up-to-date ending cash balance equals:

a.) $19,910.

b.) $18,910.

c.) $14,910.

d.) $20,510.