Joe Donaldson deposited $80,000 in a bank account, purchased a company for $60,000 cash (Building $40,000 and Inventory $20,000), performed services for clients for $10,000 cash, purchased supplies for $5,000 cash, and paid utilities of $2,000 cash. What is the amount of credits in the trial balance for the month?
A) $78,000
B) $88,000
C) $80,000
D) $90,000