Refer to the exhibit. The connection between SW2 and SW3 is fiber and occasionally experiences unidirectional link failure. An architect must optimize the netwo...

Refer to the exhibit. The connection between SW2 and SW3 is fiber and occasionally experiences unidirectional link failure. An architect must optimize the network to reduce the change of Layer 2 forwarding loops when the link fails. Which solution should the architect include?

A. Utilize BPDU filter on SW3. B. Utilize root guard on SW1. C. Utilize BPDU guard on SW1. D. Utilize loop guard on SW2.