Why can you increase the QoS of the network by increasing the link bandwidth capacity? (Multiple choice)

Why can you increase the QoS of the network by increasing the link bandwidth capacity? (Multiple choice)
A . Increased link bandwidth can support higher traffic
B . Increased link bandwidth reduces the chance of congestion, which reduces the number of packets lost.
C . Increased link bandwidth means less latency and jitter
D . Increase in link bandwidth can increase the available bandwidth of the control protocol

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Answer: ABC