Response to the following problem:
Source documents trigger the analysis of events requiring an accounting entry. Match the following source documents with the type of information they provide.
1. Check stubs or check register a. A good or service has been sold.
2. Purchase invoice from suppliers b. Cash has been received by the (vendors) business.
3. Sales tickets or invoices to c. Cash has been paid by the customers business.
4. Receipts or cash register tapes d. Goods or services have been purchased by the business.