On January 1, 2012, Lexmark Company's Accounts receivable account had a debit balance of $10,000. During January, 2012, the company billed customers for services in the amount of $300,000. Also during January, the company collected $240,000 from its customers on account. What was the balance in the Accounts receivable account at the end of January?
A) $60,000
B) $250,000
C) $70,000
D) $10,000