Refer to the exhibit.
The exhibit shows a network with HP 3500 yl Series switches at the access layer and HP 8206 zl switches at the core. The customer with this solution has logged several support calls, which were eventually tracked down to spanning tree issues.
How can a network architect adjust the solution to prevent the issue in the failure?
A . Implement BPDU filters on the switch-to-switch links and loop protection edge ports
B . Connect three or four 3500 y1 switches together in a group. Establish a distributed trunk between two switches in each group and the core switches
C . Implement BPDU guard and broadcast suppression on all the switch-to-switch links
D . Configure distributed Trunking on the two 8200 zl switches at the core. Create a distributed trunk between the core switches and each 3500 yl switch
Answer: D