Answer: a. cash register tapes.
Step-by-step explanation:
When you go to a shop and buy something at the till and the cashier prints a receipt and gives it to you, that paper is a cash register tape.
A cash register tape therefore shows the goods sold and the amount the goods were sold at. It is therefore not used as a method of control for cash disbursement which is cash going out of a business but rather for cash that is coming into the business.