Which of the following is wrong about Genetics Computer Group Sequence Format?

• A. Earlier versions of the Genetics Computer Group (GCG) programs require a unique sequence format and include programs that convert other sequence formats into GCG format
• B. Information about the sequence in the GenBank entry is not included but the line information is carried out
• C. If one or more sequence characters become changed through error, a program reading the sequence will be able to determine that the change has occurred because the checksum value in the sequence entry will no longer be correct
• D. Lines of information are terminated by two periods, which mark the end of information and the start of the sequence on the next line