A Company Received Payment of $30,000 from a Customer That

A company received payment of $30,000 from a customer that had previously received services performed on account.
What would the effect of this transaction on the company's current month accounting equation?

A) No effect on Assets; No effect on Liabilities; No effect on Stockholders' Equity
B) $30,000 increase in Assets; $30,000 increase in Liabilities; No effect on Stockholders' Equity
C) $30,000 increase in Assets; No effect on Liabilities; $30,000 increase in Stockholders' Equity
D) No effect on Assets; $30,000 increase in Liabilities; $30,000 decrease in Stockholders' Equity