A Documentary Credit Is So Named Because

A documentary credit is so named because:

A) it provides a credit that the holder can use like a short-term loan.
B) the credit that it represents must be documented by the importer before the importer can take advantage of the credit.
C) it allows partial payment or credit even if all of the required documents are not provided.
D) the payment it guarantees is conditioned on the receipt of specified documents.