【单选题】
What is the effect of changing DMT interleaved delay from 3 milliseconds to 15 milliseconds？（）
A、Latency remains the same， but throughput is decreased.
B、Latency remains the same， but error correction effectives may also be reduced.
C、Latency is increased， but faster error correction occurs.
D、Fewer ATM PVCs can be provisioned on DSL line.
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