how many networks will be in the routing table of R1 that are indicated to be learned by OSPF?

OSPF is configured using default classful addressing. With all routersand interfaces operational,
how many networks will be in the routing table of R1 that are indicated to be learned by OSPF?

A.
2

B.
3

C.
4

D.
5

E.
6

F.
7