Which command displays the number of times that the OSPF Shortest Path First (SPF) algorithm
has been executed?

A.
show ip protocol

B.
show ip ospf

C.
show ip ospf database

D.
show ip ospf interface

Explanation:
The following table describes the output of the “show ip ospf” command and their
meanings:Table52 show ip ospf Field Descriptions

Reference:http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/iprrp_r/ip2_s
3g.htm#wp1036469