Which two problems does the debug ip ospf event command output from R4 indicate?

Refer to the Exhibit.

Which two problems does the debug ip ospf event command output from R4 indicate? (Choose
Two)

A.
mismatched masks between R4 and 209.165.202.130

B.
mismatched dead timer between R4 and 209.165.202.130

C.
mismatched hello timer between R4 and 209.165.202.130

D.
mismatched areas between R4 and 209.165.202.130