A customer is facing poor performance on all synchronously replicated volumes every Thursday between 4 PM and 6 PM. All departments have checked their applications for any batch jobs; however, nothing was found. The I/O graphs do not show any anomaly and the replication links are not saturated.
What is the possible reason for this behavior?

A. Switches used for replication are restarting

B. QoS Bandwidth Limit is enabled in the QoS node

C. Data Progression is consuming all disk performance
D. Automatic report creation is impacting replication