Which of the following statements about lossless bandwidth adjustment is incorrect?

Which of the following statements about lossless bandwidth adjustment is incorrect?
A . VC12 can achieve lossless bandwidth adjustment from 2M to 1000M
B . OSU technology can achieve lossless adjustment of bandwidth of 2.6M100G
C . VC4 can achieve lossless bandwidth adjustment of 150M1200M
D . OSU can theoretically achieve lower latency than vC12

Answer: A