What will happen if an interface IP address is entered for the address portion of the network command in a RIPv1 configuration instead of a network address?

The router will reject the command.
A route to the host address will be added to outgoing RIP updates.
A route to the host address will be added to the routing table.
All interfaces in the same classful network as the configured address will be included in the RIPv1 routing process.

ccna exploration 2 chapter 5 Exam Question And Answers 

What will happen if an interface IP address is entered for the address portion of the network command in a RIPv1 configuration instead of a network address?