F3
F4
F5
F6
Answer is Right!
Answer is Wrong!
The correct answer is B. F4.
The function key F4 is used to display the payment voucher. This is a common function key used in many different software programs.
The other options are incorrect. F3 is used to display the help menu, F5 is used to refresh the screen, and F6 is used to move the cursor to the next field.