A.8.448MBPS B.2.048MBPS C.1.024MBPS D.15MBPS
A.64kB/s~2048kB/s B.64kBit/s~44.736MB/s C.64kBit/s~8.448MB/s D.64kBit/s~32.368MB/s
A.5% B.10% C.15% D.20%