From the following list, identify those that are likely to serve as source documents.

Note: 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.

Select all that apply.

Trial balance

Telephone bill

Sales receipt

Income statement

Invoice from supplier

Bank statement