Refer to the exhibit.

What problem does the debug ip ospf event output from R4 indicate?

A.
a mismatched dead timer between R4 and 209.165.202.130

B.
a mismatched hello timer between R4 and 209.165.202.130

C.
mismatched areas between R4 and 209.165.202.130

D.
mismatched masks between R4 and 209.165.202.130

Explanation:
The last line of the logging output shows that this is an issue with the subnet mask