Regarding the explanation or INMARSAT-C "Fax”, which statement is incorrect?
选项：

A: It is abbreviation for “facsimile"
B: It is a device used to transmit a copy of an original document. The INMAR- SAT-B/M, F and mini-M systems support two-way Fax transmissions.
C: The INMARSAT-C system is able to send only text messages (no graphics) to a fax terminal in the ship-to-shore direction.
D: The INMARSAT-C system is able to send two way text messages to a fax terminal in the ship-to-shore and shore-to-ship directions.