Cisco Exam Questions

What can be done to prevent asymmetrical traffic flows from the core link between the aggregations s

Refer to exhibit.

In this situation, the link between aggregation switches fails. What can be done to prevent asymmetrical traffic flows from the core link between the aggregations switches fail?

A.
Implement RHI

B.
Implement RSTP and MST

C.
Tune STP costs on access switches

D.
Advertise the Agg1 switch as the primary route to the core