When a seller sends pro-forma invoice to a potential customer, it is?

A.

an indication that the seller is out of business

B.

an indication that the goods are out of stock

C.

a polite way of asking him to return the goods already purchased

D.

an invitation to the purchaser to buy on hire-purchase

E.

an indication that credit will not be granted

Correct answer is E

No explanation has been provided for this answer.