Your Layer 2 network uses VLAN IDs 100 through 400 and you are required to load-balance these
VLANs between two different root bridges. You are currently using the default RSTP settings and
notice that all VLANs are using the same root bridge.
How do you ensure the VLANs are load-balanced between two root bridges?

A.
Configure MSTP with two MSTI regions and split the VLAN range between them.

B.
Configure VSTP with two VLAN groups and split the VLAN range between them.

C.
Configure two RSTP instances and split the VLAN range between them.

D.
Configure STP and RSTP and split the VLAN range between them.

Explanation: