Function key for selecting payment voucher is A. F5 B. F6 C. F9 D. F11

The correct answer is: A. F5

The function key for selecting payment voucher is F5. This is because F5 is the default key for selecting a payment voucher in most accounting software programs. When you press F5, a list of all available payment vouchers will be displayed. You can then select the voucher that you want to use.

The other options are incorrect because they are not the default keys for selecting a payment voucher in most accounting software programs. F6 is the default key for refreshing a data entry screen, F9 is the default key for entering a new transaction, and F11 is the default key for opening a help window.

I hope this helps! Let me know if you have any other questions.