From the following list, identify those that are likely to serve as source documents. (You may select more than one answer. Single click the box with the question mark to produce a check mark for a correct answer and double click the box with the question mark to empty the box for a wrong answer. Any boxes left with a question mark will be automatically graded as incorrect.)
Sales ticket
Trial balance
Balance sheet
Telephone bill
Invoice from supplier
Company revenue account
Income statement
Bank statement
Prepaid insurance