Answer:
D) A credit to Other Financing Sources for $5,000
Step-by-step explanation:
Since cash is received, you must record the $15,000 in the cash account. The accumulated depreciation account must be closed, and since accumulated depreciation has a credit balance, it is closed by debiting it. Equipment is an asset account with a debit balance and it also must be closed, ans you do that with a credit.
Other financing sources is used to record non-revenue items such as proceeds from loans, leases, sales of bonds or notes, insurance recoveries, etc., not the sale of assets.