In the Context of Proper Accounting Systems, Which of the Following

In the context of proper accounting systems, which of the following best describes accrual-based accounting?

A) It categorizes material assets that can quickly be converted to cash as a source of revenue.
B) It recognizes expenses as they are paid and recognizes revenue as it is generated.
C) It treats accounts payable, fixed assets, and current assets as expenses until they are fully paid out.
D) It records expenses and revenues when they actually occur, regardless of when the cash is received.