The term 4 net 7 on an invoice means that?

• A.4% surcharge will be made unless payment iss made within seven days
• B.4% discount will be allowed on the price charged only if the goods are bought within seven days
• C.4% discount will be allowed on the price charged only if payment is made after seven days
• D.4% discount will be allowed on the price charge if payment is made within seven days
• E.