Regarding the MPLS tuning solution, which of the following descriptions is incorrect?

Regarding the MPLS tuning solution, which of the following descriptions is incorrect?
A . It is recommended to deploy a common path for two-way tunnels to facilitate maintenance and make tunnel BFD detection more reliable.
B . When optimizing path calculation, prioritize the creation of high-priority tunnels. High-priority tunnels can preempt low-priority tunnel resources.
C . RSVP-TE, SR-TE, and LDP tunnels can all be tuned
D . When deploying multiple load-sharing tunnels between two PE nodes, it is recommended to deploy a separation group.

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Answer: C