A bill of exchange to which document of title are attached is known as?

The correct answer is "documentary bill." A documentary bill is a type of bill of exchange that includes a document of title attached to it. This document of title could be a bill of lading, which serves as proof of ownership and receipt of goods shipped. The purpose of attaching a document of title to a bill of exchange is to provide additional security for the parties involved in the transaction. The holder of the bill of exchange can only receive payment once they have presented the required document of title to the issuer of the bill of exchange. In summary, a documentary bill is a bill of exchange that requires a document of title to be attached to it, such as a bill of lading, to ensure payment.