【单选题】Which of the following statements is true about D/P at sight or D/P after sight?
A.
D/P at sight gives the importer a certain period after presentation of the documents, but documents are not released to him until he actually pays for the merchandise.
B.
D/P at sight requires immediate payment by the importer to get hold of the documents.
C.
D/P after sight requires immediate payment by the importer to get hold of the documents.
D.
D/P after sight gives the importer the right to claim payment at any time and place.