Glendale Corporation Had the Following Transactions in August: Earned $5,000

Glendale Corporation had the following transactions in August: Earned $5,000 of revenues on account; collected $5,000 from a customer for services provided last month; incurred $500 of repair expense and paid cash; paid $600 for rent that it owed from the previous month.
What is the net income in August?

A) $500
B) $5,000
C) $9,500
D) $4,500