Which of these statements about accrual accounting is true?

a$.$Revenue is recorded only when payments are received, while expenses are recognized when they're incurred.

b$.$All revenue from prepayments should be recognized when the payment is received, while expenses accrue over the life of the obligation.

c$.$If the business has provided the goods or services and can reasonably expect to receive cash, it can recognize the revenue in that period.

d$.$The matching principle dictates that expenses should be recognized when they are incurred, regardless of when revenue is recognized.