The total credit sales for a period can be extracted from the

The total credit sales for a period can be extracted from the "sales day book". A sales day book is a record of all sales transactions that a business makes on credit. It contains information such as the date of the sale, the customer's name, the invoice number, the amount of the sale, and whether the sale was made on credit or in cash. By totaling the credit sales column in the sales day book, you can determine the total amount of credit sales for a given period. The other options mentioned are not directly related to credit sales: - The cash book records all cash transactions, whether they are sales or other transactions such as expenses or payments received. - The petty cash book is used to record small, incidental expenses that are paid for in cash. - Returns inwards refer to goods that are returned by customers for credit or a refund, but they do not provide information about total credit sales.