Refer to the exhibit.

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Asymmetric connection attempts in the aggregation layer are occurring on redundant Cisco Catalyst 6500 Series FWSM modules what change might prevent this problem?

A.
Implement route tuning and root guard

B.
Add more Cisco Catalyst 6500 Series FWSH modules to each Cisco Catalyst 6500 switch.

C.
Reduce the over subscription on the aggregation-to-access links.

D.
Configure round-robin load balancing between the Cisco Catalyst 6500 Series FWSM modules.