which address will the OSPF process select as the router ID?

R1 is configured with the default configuration of OSPF.
From the following list of IP addresses configured on R1, which address will the OSPF process select as the router ID?

A.
192.168.0.1

B.
172.16.1.1

C.
172.16.2.1

D.
172.16.2.225