Refer to the exhibit. The administrator must configure a floating sialic default route that points to 2001:db8:1234:2::1 and replaces the current default route ...

Refer to the exhibit. The administrator must configure a floating sialic default route that points to 2001:db8:1234:2::1 and replaces the current default route only if it fails. Which command must the engineer configure on the CPE?

A. ipv6 route ::/0 2001:db8:1234:2::1 3 B. ipv6 route ::/128 2001 :db8:1234:2::1 3 C. ipv6 route ::/0 2001:db8:1234:2::1 1 D. ipv6 route ::/0 2001:db8:1234:2::1 2