please help

Which one of the following does not usually need to be set up as a linked account: a. Purchase discounts b. Freight revenue x c. Sales discount d. GST/PST payable Which one of the following general statements is correct about the Journal entry that happens when a sale is booked - a. GST charged must be entered as credit amount b. PST and GST charged and payable work exactly the same way c. PST charged must be entered as a debit amount d. GST charged must be entered as a debit amount x