Answer:
Option C. Credit to Notes Payable
Step-by-step explanation:
The reason is that when the payment was received for the services delivered the entry would be:
Dr Cash Account XX
Cr Accounts Receivables XX
Because the receivable has been reduced and the cash asset has been increased. (Decrease in one asset and increase in the other)
When the bills are paid the entry would be to record the accounts payables decrease which must be debited and decrease in cash asset is always credited.
Dr Accounts Payables XX
Cr Cash Account XX
When the equipment is bought at credit the entry would include an increase in Equipment asset which must be debited and increase in notes payable because credit is used here to finance the equipment. This increase in credit must be credited.
Dr Equipment XX
Cr Notes Payables XX
So the only entry which matches the one of the option is credit to notes payables.
Hence option C is correct here.