Which of the Following Is Essential While Making Price Quotations

Which of the following is essential while making price quotations for international sale?

A) Price quotations can be made only if it is shown that prices are lower in the importing country than in the exporting country.
B) Price quotations must specify the currency to be used and the credit terms of the transaction.
C) The price quotation and contract should define only the quantity of goods and not necessarily the quality.
D) Price quotations must be quoted only in terms of electronic trade dollars.
E) Price quotations need to specify the transportation charges but need not necessarily state what type of documentation needs to be used.