Bottom of tally screen shows A. Button bar B. List of vouchers C. List of companies D. Calculator

The correct answer is: Button bar.

The button bar is located at the bottom of the Tally screen and contains buttons for common tasks such as opening a new company, creating a new voucher, and printing a report.

The list of vouchers is located in the left-hand pane of the Tally screen and displays a list of all the vouchers that have been created for the current company.

The list of companies is located in the right-hand pane of the Tally screen and displays a list of all the companies that have been created in the Tally database.

The calculator is a tool that can be used to perform calculations. It is located in the toolbar at the top of the Tally screen.