Final answer:
A balance sheet is an accounting tool that lists assets and liabilities. It can be prepared for any period of time, but is usually prepared for a month or for a year.
Step-by-step explanation:
A balance sheet is an accounting tool that lists assets and liabilities. It provides a snapshot of an organization's financial position at a given point in time. Regarding the options given, the correct answer is b. Can be prepared for any period of time, but is usually prepared for a month or for a year. However, it is important to note that a balance sheet is not the link between last year's income statement and this year's income statement.