Cash book is an example of-

Simple journal
Special journal
(A) and (B) both
None of the above

The correct answer is: A. Simple journal.

A cash book is a book of original entry that records all cash receipts and cash payments. It is a simple journal because it only records two types of transactions: cash receipts and cash payments.

A special journal is a book of original entry that records a specific type of transaction. For example, a sales journal records all sales transactions, and a purchases journal records all purchases transactions.

Therefore, a cash book is not an example of a special journal.