The following description of the Flexible ROADM, which is wrong?
A . Improve spectrum utilization and meet flexible scheduling requirements in the future era of over 100 Gbit/= rate.
B . DFlexible ROADM is compatible with existing networks
C . WSMD2 board supports F1exible ROADM configuration
D . Flexible grid technology provides flexible bandwidth settings and flexible bandwidth allocation and scheduling.
Answer: C