Which answer can be verified as definitely true based on this output?

Examine the following excerpt from the show ip eigrp topology 10.2.2.0/24 command on
router R1. Which answer can be verified as definitely true based on this output?
External data:
Originating router is 10.1.1.1
AS number of route is 1
External protocol is OSPF, external metric is 64
Administrator tag is 0 (0x00000000)

A.
R1 is the router that redistributed the route.

B.
R1’s metric to reach subnet 10.2.2.0/24 is 64.

C.
The route was redistributed on a router that has a router ospf 1 command configured.

D.
R1 is redistributing a route to prefix 10.2.2.0/24 into OSPF.

Explanation:

This output is the external data section of a detailed view of an EIGRP topology
table entry for an external route. This output confirms that this route was redistributed
into EIGRP. If R1 were the redistributing router, the output would include the
phrase “(this system)”; this example does not include that notation. The output means
that on the router that did the redistribution, the route was redistributed from OSPF
process 1, and the OSPF metric was 64. R1’s metric is not based on the OSPF metric of the
route.