Choice "C" is correct. The question can be readily addressed by using the "odd man out" principle. Just look at the other three choices. Each of them is a transaction file of some type; one of them is even called a transaction file. The other two (cash disbursements and cash receipts) are both transactions in a non-computerized accounting system and are transaction files in a computerized accounting system.
Choices "b", "a", and "d" are incorrect, per the above explanation.
