Answer:
The correct answer is letter "A" and "B": Revenues in the period when the revenue is earned, even though the cash has not yet been collected. Expenses in the period incurred, even though cash has not yet been paid.
Explanation:
The cash basis accounting method recognizes revenue and expenses when they are realized -when the money is received or given away. On the other hand, the accrual basis accounting method recognizes revenue when it is earned and expenses when they are billed even if they have not been paid yet.